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<div class="title">SumLn<div class="ingroups"><a class="el" href="group__signal__arithmetic.html">Arithmetic Operations</a></div></div> </div>
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<p>Sums up the natural logarithm of each sample of a signal.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga8cc88fa6042159e2074819e58f669685"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga8cc88fa6042159e2074819e58f669685">nppsSumLnGetBufferSize_32f_Ctx</a> (int nLength, int *hpBufferSize, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga8cc88fa6042159e2074819e58f669685"><td class="mdescLeft"> </td><td class="mdescRight">Device scratch buffer size (in bytes) for 32f SumLn. <a href="#ga8cc88fa6042159e2074819e58f669685">More...</a><br/></td></tr>
<tr class="separator:ga8cc88fa6042159e2074819e58f669685"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf3d2b0afdb9d23fd6659f45e0e09133d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gaf3d2b0afdb9d23fd6659f45e0e09133d">nppsSumLnGetBufferSize_32f</a> (int nLength, int *hpBufferSize)</td></tr>
<tr class="separator:gaf3d2b0afdb9d23fd6659f45e0e09133d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad9e8b167b21757ad9f9bc3115e8ad67b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gad9e8b167b21757ad9f9bc3115e8ad67b">nppsSumLn_32f_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:gad9e8b167b21757ad9f9bc3115e8ad67b"><td class="mdescLeft"> </td><td class="mdescRight">32-bit floating point signal sum natural logarithm. <a href="#gad9e8b167b21757ad9f9bc3115e8ad67b">More...</a><br/></td></tr>
<tr class="separator:gad9e8b167b21757ad9f9bc3115e8ad67b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga808e1bbcdf3f6e33422582c609494dbb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga808e1bbcdf3f6e33422582c609494dbb">nppsSumLn_32f</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer)</td></tr>
<tr class="separator:ga808e1bbcdf3f6e33422582c609494dbb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4e4ca44cf0c26ba33c7f399e7c42f2c1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga4e4ca44cf0c26ba33c7f399e7c42f2c1">nppsSumLnGetBufferSize_64f_Ctx</a> (int nLength, int *hpBufferSize, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga4e4ca44cf0c26ba33c7f399e7c42f2c1"><td class="mdescLeft"> </td><td class="mdescRight">Device scratch buffer size (in bytes) for 64f SumLn. <a href="#ga4e4ca44cf0c26ba33c7f399e7c42f2c1">More...</a><br/></td></tr>
<tr class="separator:ga4e4ca44cf0c26ba33c7f399e7c42f2c1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga78816a0ec97baafe0ef47be470b2170b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga78816a0ec97baafe0ef47be470b2170b">nppsSumLnGetBufferSize_64f</a> (int nLength, int *hpBufferSize)</td></tr>
<tr class="separator:ga78816a0ec97baafe0ef47be470b2170b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad326e632885e6df65a803d35377c4498"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gad326e632885e6df65a803d35377c4498">nppsSumLn_64f_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:gad326e632885e6df65a803d35377c4498"><td class="mdescLeft"> </td><td class="mdescRight">64-bit floating point signal sum natural logarithm. <a href="#gad326e632885e6df65a803d35377c4498">More...</a><br/></td></tr>
<tr class="separator:gad326e632885e6df65a803d35377c4498"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga44ea18f9a7f7a4622274ce7584685e2b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga44ea18f9a7f7a4622274ce7584685e2b">nppsSumLn_64f</a> (const <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer)</td></tr>
<tr class="separator:ga44ea18f9a7f7a4622274ce7584685e2b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7acc48d57df81381ecbb25c42f9a2662"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga7acc48d57df81381ecbb25c42f9a2662">nppsSumLnGetBufferSize_32f64f_Ctx</a> (int nLength, int *hpBufferSize, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga7acc48d57df81381ecbb25c42f9a2662"><td class="mdescLeft"> </td><td class="mdescRight">Device scratch buffer size (in bytes) for 32f64f SumLn. <a href="#ga7acc48d57df81381ecbb25c42f9a2662">More...</a><br/></td></tr>
<tr class="separator:ga7acc48d57df81381ecbb25c42f9a2662"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa8845163a463261d860e55f55535c456"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gaa8845163a463261d860e55f55535c456">nppsSumLnGetBufferSize_32f64f</a> (int nLength, int *hpBufferSize)</td></tr>
<tr class="separator:gaa8845163a463261d860e55f55535c456"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga035e2461cd0b34c99ad087d11a9bf64e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga035e2461cd0b34c99ad087d11a9bf64e">nppsSumLn_32f64f_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga035e2461cd0b34c99ad087d11a9bf64e"><td class="mdescLeft"> </td><td class="mdescRight">32-bit flaoting point input, 64-bit floating point output signal sum natural logarithm. <a href="#ga035e2461cd0b34c99ad087d11a9bf64e">More...</a><br/></td></tr>
<tr class="separator:ga035e2461cd0b34c99ad087d11a9bf64e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaae8f89764291d90e6fada4914a430040"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gaae8f89764291d90e6fada4914a430040">nppsSumLn_32f64f</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer)</td></tr>
<tr class="separator:gaae8f89764291d90e6fada4914a430040"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf924c1d275bc60dc586dd75607db839c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gaf924c1d275bc60dc586dd75607db839c">nppsSumLnGetBufferSize_16s32f_Ctx</a> (int nLength, int *hpBufferSize, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:gaf924c1d275bc60dc586dd75607db839c"><td class="mdescLeft"> </td><td class="mdescRight">Device scratch buffer size (in bytes) for 16s32f SumLn. <a href="#gaf924c1d275bc60dc586dd75607db839c">More...</a><br/></td></tr>
<tr class="separator:gaf924c1d275bc60dc586dd75607db839c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7603c10d6a991b20ae595fd73e43994c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga7603c10d6a991b20ae595fd73e43994c">nppsSumLnGetBufferSize_16s32f</a> (int nLength, int *hpBufferSize)</td></tr>
<tr class="separator:ga7603c10d6a991b20ae595fd73e43994c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga842ea9e1000b1b9e30696d6596a0fbc9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#ga842ea9e1000b1b9e30696d6596a0fbc9">nppsSumLn_16s32f_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga842ea9e1000b1b9e30696d6596a0fbc9"><td class="mdescLeft"> </td><td class="mdescRight">16-bit signed short integer input, 32-bit floating point output signal sum natural logarithm. <a href="#ga842ea9e1000b1b9e30696d6596a0fbc9">More...</a><br/></td></tr>
<tr class="separator:ga842ea9e1000b1b9e30696d6596a0fbc9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaade88f860d3f1fca16397f97be903dca"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__signal__sumln.html#gaade88f860d3f1fca16397f97be903dca">nppsSumLn_16s32f</a> (const <a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a> *pSrc, int nLength, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pDst, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDeviceBuffer)</td></tr>
<tr class="separator:gaade88f860d3f1fca16397f97be903dca"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Sums up the natural logarithm of each sample of a signal. </p>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaade88f860d3f1fca16397f97be903dca"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_16s32f </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga842ea9e1000b1b9e30696d6596a0fbc9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_16s32f_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>16-bit signed short integer input, 32-bit floating point output signal sum natural logarithm. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pSrc</td><td><a class="el" href="npps_conventions_lb.html#source_signal_pointer">Source Signal Pointer</a>. </td></tr>
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">pDst</td><td>Pointer to the output result. </td></tr>
<tr><td class="paramname">pDeviceBuffer</td><td>Pointer to the required device memory allocation. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="npps_conventions_lb.html#signal_data_error_codes">Signal Data Related Error Codes</a>, <a class="el" href="npps_conventions_lb.html#length_error_codes">Length Related Error Codes</a>. </dd></dl>
</div>
</div>
<a class="anchor" id="ga808e1bbcdf3f6e33422582c609494dbb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_32f </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gaae8f89764291d90e6fada4914a430040"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_32f64f </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga035e2461cd0b34c99ad087d11a9bf64e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_32f64f_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>32-bit flaoting point input, 64-bit floating point output signal sum natural logarithm. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pSrc</td><td><a class="el" href="npps_conventions_lb.html#source_signal_pointer">Source Signal Pointer</a>. </td></tr>
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">pDst</td><td>Pointer to the output result. </td></tr>
<tr><td class="paramname">pDeviceBuffer</td><td>Pointer to the required device memory allocation. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="npps_conventions_lb.html#signal_data_error_codes">Signal Data Related Error Codes</a>, <a class="el" href="npps_conventions_lb.html#length_error_codes">Length Related Error Codes</a>. </dd></dl>
</div>
</div>
<a class="anchor" id="gad9e8b167b21757ad9f9bc3115e8ad67b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_32f_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>32-bit floating point signal sum natural logarithm. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pSrc</td><td><a class="el" href="npps_conventions_lb.html#source_signal_pointer">Source Signal Pointer</a>. </td></tr>
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">pDst</td><td>Pointer to the output result. </td></tr>
<tr><td class="paramname">pDeviceBuffer</td><td>Pointer to the required device memory allocation. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="npps_conventions_lb.html#signal_data_error_codes">Signal Data Related Error Codes</a>, <a class="el" href="npps_conventions_lb.html#length_error_codes">Length Related Error Codes</a>. </dd></dl>
</div>
</div>
<a class="anchor" id="ga44ea18f9a7f7a4622274ce7584685e2b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_64f </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gad326e632885e6df65a803d35377c4498"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLn_64f_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gae8a11911011c6c6557f66abada886a27">Npp64f</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDeviceBuffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>64-bit floating point signal sum natural logarithm. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pSrc</td><td><a class="el" href="npps_conventions_lb.html#source_signal_pointer">Source Signal Pointer</a>. </td></tr>
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">pDst</td><td>Pointer to the output result. </td></tr>
<tr><td class="paramname">pDeviceBuffer</td><td>Pointer to the required device memory allocation. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="npps_conventions_lb.html#signal_data_error_codes">Signal Data Related Error Codes</a>, <a class="el" href="npps_conventions_lb.html#length_error_codes">Length Related Error Codes</a>. </dd></dl>
</div>
</div>
<a class="anchor" id="ga7603c10d6a991b20ae595fd73e43994c"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_16s32f </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gaf924c1d275bc60dc586dd75607db839c"></a>
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<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_16s32f_Ctx </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Device scratch buffer size (in bytes) for 16s32f SumLn. </p>
<p>This primitive provides the correct buffer size for nppsSumLn_16s32f. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">hpBufferSize</td><td>Required buffer size. Important: hpBufferSize is a <em>host pointer.</em> <a class="el" href="general_conventions_lb.html#general_scratch_buffer">Scratch Buffer and Host Pointer</a>. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>NPP_SUCCESS </dd></dl>
</div>
</div>
<a class="anchor" id="gaf3d2b0afdb9d23fd6659f45e0e09133d"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_32f </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gaa8845163a463261d860e55f55535c456"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_32f64f </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga7acc48d57df81381ecbb25c42f9a2662"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_32f64f_Ctx </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Device scratch buffer size (in bytes) for 32f64f SumLn. </p>
<p>This primitive provides the correct buffer size for nppsSumLn_32f64f. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">hpBufferSize</td><td>Required buffer size. Important: hpBufferSize is a <em>host pointer.</em> <a class="el" href="general_conventions_lb.html#general_scratch_buffer">Scratch Buffer and Host Pointer</a>. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>NPP_SUCCESS </dd></dl>
</div>
</div>
<a class="anchor" id="ga8cc88fa6042159e2074819e58f669685"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_32f_Ctx </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
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<td></td>
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<p>Device scratch buffer size (in bytes) for 32f SumLn. </p>
<p>This primitive provides the correct buffer size for nppsSumLn_32f. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">hpBufferSize</td><td>Required buffer size. Important: hpBufferSize is a <em>host pointer.</em> <a class="el" href="general_conventions_lb.html#general_scratch_buffer">Scratch Buffer and Host Pointer</a>. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>NPP_SUCCESS </dd></dl>
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<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_64f </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
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<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em> </td>
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<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppsSumLnGetBufferSize_64f_Ctx </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nLength</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>hpBufferSize</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
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<p>Device scratch buffer size (in bytes) for 64f SumLn. </p>
<p>This primitive provides the correct buffer size for nppsSumLn_64f. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nLength</td><td><a class="el" href="npps_conventions_lb.html#length_specification">Signal Length</a>. </td></tr>
<tr><td class="paramname">hpBufferSize</td><td>Required buffer size. Important: hpBufferSize is a <em>host pointer.</em> <a class="el" href="general_conventions_lb.html#general_scratch_buffer">Scratch Buffer and Host Pointer</a>. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>NPP_SUCCESS </dd></dl>
</div>
</div>
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