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<div class="title">spxprm Struct Reference</div> </div>
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<p>Spectral variables and their derivatives.
<a href="structspxprm.html#details">More...</a></p>
<p><code>#include <<a class="el" href="spx_8h_source.html">spx.h</a>></code></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:a533847a7e77e2bba8ce886289d31abdb"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a533847a7e77e2bba8ce886289d31abdb">restfrq</a></td></tr>
<tr class="separator:a533847a7e77e2bba8ce886289d31abdb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad3a5b851397a50e8644aeda10b184776"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ad3a5b851397a50e8644aeda10b184776">restwav</a></td></tr>
<tr class="separator:ad3a5b851397a50e8644aeda10b184776"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2c20a26fe559feacc85e6e76c31bbbc3"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a2c20a26fe559feacc85e6e76c31bbbc3">wavetype</a></td></tr>
<tr class="separator:a2c20a26fe559feacc85e6e76c31bbbc3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae83f0b38ecd0b7b7b6afb6eb42a61fd4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ae83f0b38ecd0b7b7b6afb6eb42a61fd4">velotype</a></td></tr>
<tr class="separator:ae83f0b38ecd0b7b7b6afb6eb42a61fd4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af2a797bbae7610552aa9adfe75118908"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#af2a797bbae7610552aa9adfe75118908">freq</a></td></tr>
<tr class="separator:af2a797bbae7610552aa9adfe75118908"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5f4248299fb8a02ff1df6ed3d1baaa1b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a5f4248299fb8a02ff1df6ed3d1baaa1b">afrq</a></td></tr>
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<tr class="memitem:ab67c62285ad58f5f0c1a88cb15ac3408"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ab67c62285ad58f5f0c1a88cb15ac3408">ener</a></td></tr>
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<tr class="memitem:aa37e50cd66795673d6bd43883a1be540"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#aa37e50cd66795673d6bd43883a1be540">wavn</a></td></tr>
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<tr class="memitem:a41ee038d00742dcf8cae9b6ed45a699b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a41ee038d00742dcf8cae9b6ed45a699b">vrad</a></td></tr>
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<tr class="memitem:a7ba88553a468a9ef696c0c1eeda6864f"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a7ba88553a468a9ef696c0c1eeda6864f">wave</a></td></tr>
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<tr class="memitem:a1d7fd26e54e3b253a9e26163445cbfc8"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a1d7fd26e54e3b253a9e26163445cbfc8">vopt</a></td></tr>
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<tr class="memitem:a968cf3d8e4b0d082c6d617f5a38344f7"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a968cf3d8e4b0d082c6d617f5a38344f7">zopt</a></td></tr>
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<tr class="memitem:aef53f8244101a4229518b25b08143d18"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#aef53f8244101a4229518b25b08143d18">awav</a></td></tr>
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<tr class="memitem:a51aa1b37a464c53a5c07a9a407c4b96c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a51aa1b37a464c53a5c07a9a407c4b96c">velo</a></td></tr>
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<tr class="memitem:a6d41ec682a058f4028032bf6934f7fc0"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a6d41ec682a058f4028032bf6934f7fc0">beta</a></td></tr>
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<tr class="memitem:aa75c986198c4673e2caa30bd4ac73a30"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#aa75c986198c4673e2caa30bd4ac73a30">dfreqafrq</a></td></tr>
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<tr class="memitem:a678577f6866727419716361586fe34bb"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a678577f6866727419716361586fe34bb">dafrqfreq</a></td></tr>
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<tr class="memitem:aa419711bf0079fff37d4adbae3278f5c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#aa419711bf0079fff37d4adbae3278f5c">dfreqener</a></td></tr>
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<tr class="memitem:a2d4ca3a63bb8871faec7928c8f713484"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a2d4ca3a63bb8871faec7928c8f713484">denerfreq</a></td></tr>
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<tr class="memitem:ac0096d466fedc5ec61948044af06551d"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ac0096d466fedc5ec61948044af06551d">dfreqwavn</a></td></tr>
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<tr class="memitem:a34e6a4ba58cd67ef619ab48a58c8b808"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a34e6a4ba58cd67ef619ab48a58c8b808">dwavnfreq</a></td></tr>
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<tr class="memitem:a9c60b90b7911b9846b353991dbf38084"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a9c60b90b7911b9846b353991dbf38084">dfreqvrad</a></td></tr>
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<tr class="memitem:a1f9bd735b5ffa618aa0713616a3b2b87"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a1f9bd735b5ffa618aa0713616a3b2b87">dvradfreq</a></td></tr>
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<tr class="memitem:a9cab306f378116a9b9388bd215a98c0b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a9cab306f378116a9b9388bd215a98c0b">dfreqwave</a></td></tr>
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<tr class="memitem:a90656bb22c7fdb8c750ee5a16745334c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a90656bb22c7fdb8c750ee5a16745334c">dwavefreq</a></td></tr>
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<tr class="memitem:aa6ef9cc07973932f19c48062199e6689"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#aa6ef9cc07973932f19c48062199e6689">dfreqawav</a></td></tr>
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<tr class="memitem:ac9e44005ceadafb8158df81fe022f46e"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ac9e44005ceadafb8158df81fe022f46e">dawavfreq</a></td></tr>
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<tr class="memitem:a25de138f15027a948887f59f79b59d91"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a25de138f15027a948887f59f79b59d91">dfreqvelo</a></td></tr>
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<tr class="memitem:a6300648f1270fbd6f45fefaac054db70"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a6300648f1270fbd6f45fefaac054db70">dvelofreq</a></td></tr>
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<tr class="memitem:a307491e5045c959ed5212c54b6e300e9"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a307491e5045c959ed5212c54b6e300e9">dwavevopt</a></td></tr>
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<tr class="memitem:a709e6f9fd2c706705a019d865280526f"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a709e6f9fd2c706705a019d865280526f">dvoptwave</a></td></tr>
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<tr class="memitem:a203c7de3b62de030e721e99cc0a5799b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a203c7de3b62de030e721e99cc0a5799b">dwavezopt</a></td></tr>
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<tr class="memitem:a84d43f663df39a476b33a9516f3662eb"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a84d43f663df39a476b33a9516f3662eb">dzoptwave</a></td></tr>
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<tr class="memitem:af252fd0c875bfe2dc99c56617ae2faa8"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#af252fd0c875bfe2dc99c56617ae2faa8">dwaveawav</a></td></tr>
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<tr class="memitem:a78d8a2235f18250cfa97a32625ab72a0"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a78d8a2235f18250cfa97a32625ab72a0">dawavwave</a></td></tr>
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<tr class="memitem:a75c591192f69d3e284d037d0216c2179"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a75c591192f69d3e284d037d0216c2179">dwavevelo</a></td></tr>
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<tr class="memitem:acfdb74852a20099c1cdc3b2cc8faa03b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#acfdb74852a20099c1cdc3b2cc8faa03b">dvelowave</a></td></tr>
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<tr class="memitem:a7e1e561ce26f9be86978783bbd0dd496"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a7e1e561ce26f9be86978783bbd0dd496">dawavvelo</a></td></tr>
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<tr class="memitem:a5ab73474c2a6e92885c805cc017f6fbe"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a5ab73474c2a6e92885c805cc017f6fbe">dveloawav</a></td></tr>
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<tr class="memitem:a1d7633da24d461d6f791e003be2a508a"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a1d7633da24d461d6f791e003be2a508a">dvelobeta</a></td></tr>
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<tr class="memitem:acc8a46737906be2cee7cba0b2aa09d87"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#acc8a46737906be2cee7cba0b2aa09d87">dbetavelo</a></td></tr>
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<tr class="memitem:ab232cb470b7f96330512dea46791644e"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structwcserr.html">wcserr</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#ab232cb470b7f96330512dea46791644e">err</a></td></tr>
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<tr class="memitem:a947deca62dd508673f5b00f639d3af79"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="structspxprm.html#a947deca62dd508673f5b00f639d3af79">padding</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The <b>spxprm</b> struct contains the value of all spectral variables and their derivatives. It is used solely by <a class="el" href="spx_8h.html#a192c7ea1edb2fc79d391a51bec7442e0" title="Spectral cross conversions (scalar). ">specx()</a> which constructs it from information provided via its function arguments.</p>
<p>This struct should be considered read-only, no members need ever be set nor should ever be modified by the user. </p>
</div><h2 class="groupheader">Field Documentation</h2>
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<td class="memname">double spxprm::restfrq</td>
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<p>(<em>Returned</em>) Rest frequency [Hz]. </p>
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<td class="memname">double spxprm::restwav</td>
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<p>(<em>Returned</em>) Rest wavelength [m]. </p>
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<td class="memname">int spxprm::wavetype</td>
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<p>(<em>Returned</em>) True if wave types have been computed, and ... </p>
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<p>(<em>Returned</em>) ... true if velocity types have been computed; types are defined below.</p>
<p>If one or other of <a class="el" href="structspxprm.html#a533847a7e77e2bba8ce886289d31abdb">spxprm::restfrq</a> and <a class="el" href="structspxprm.html#ad3a5b851397a50e8644aeda10b184776">spxprm::restwav</a> is given (non-zero) then all spectral variables may be computed. If both are given, restfrq is used. If restfrq and restwav are both zero, only wave characteristic xor velocity type spectral variables may be computed depending on the variable given. These flags indicate what is available. </p>
</div>
</div>
<a class="anchor" id="af2a797bbae7610552aa9adfe75118908"></a>
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<table class="memname">
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<td class="memname">double spxprm::freq</td>
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<p>(<em>Returned</em>) Frequency [Hz] (<em>wavetype</em>). </p>
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<td class="memname">double spxprm::afrq</td>
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<p>(<em>Returned</em>) Angular frequency [rad/s] (<em>wavetype</em>). </p>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::ener</td>
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<p>(<em>Returned</em>) Photon energy [J] (<em>wavetype</em>). </p>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::wavn</td>
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<p>(<em>Returned</em>) Wave number [/m] (<em>wavetype</em>). </p>
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<table class="memname">
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<td class="memname">double spxprm::vrad</td>
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<p>(<em>Returned</em>) Radio velocity [m/s] (<em>velotype</em>). </p>
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<a class="anchor" id="a7ba88553a468a9ef696c0c1eeda6864f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::wave</td>
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</table>
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<p>(<em>Returned</em>) Vacuum wavelength [m] (<em>wavetype</em>). </p>
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<table class="memname">
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<td class="memname">double spxprm::vopt</td>
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<p>(<em>Returned</em>) Optical velocity [m/s] (<em>velotype</em>). </p>
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</div>
<a class="anchor" id="a968cf3d8e4b0d082c6d617f5a38344f7"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::zopt</td>
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<p>(<em>Returned</em>) Redshift [dimensionless] (<em>velotype</em>). </p>
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<a class="anchor" id="aef53f8244101a4229518b25b08143d18"></a>
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::awav</td>
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</table>
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<p>(<em>Returned</em>) Air wavelength [m] (<em>wavetype</em>). </p>
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<td class="memname">double spxprm::velo</td>
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<p>(<em>Returned</em>) Relativistic velocity [m/s] (<em>velotype</em>). </p>
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<table class="memname">
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<td class="memname">double spxprm::beta</td>
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<p>(<em>Returned</em>) Relativistic beta [dimensionless] (<em>velotype</em>). </p>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dfreqafrq</td>
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<p>(<em>Returned</em>) Derivative of frequency with respect to angular frequency [/rad] (constant, <img class="formulaInl" alt="$= 1 / 2 \pi$" src="form_53.png"/>), and ... </p>
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<a class="anchor" id="a678577f6866727419716361586fe34bb"></a>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dafrqfreq</td>
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<p>(<em>Returned</em>) ... vice versa [rad] (constant, <img class="formulaInl" alt="$= 2 \pi$" src="form_54.png"/>, always available). </p>
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<td class="memname">double spxprm::dfreqener</td>
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<p>(<em>Returned</em>) Derivative of frequency with respect to photon energy [/J/s] (constant, <img class="formulaInl" alt="$= 1/h$" src="form_55.png"/>), and ... </p>
</div>
</div>
<a class="anchor" id="a2d4ca3a63bb8871faec7928c8f713484"></a>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::denerfreq</td>
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<p>(<em>Returned</em>) ... vice versa [Js] (constant, <img class="formulaInl" alt="$= h$" src="form_56.png"/>, Planck's constant, always available). </p>
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<a class="anchor" id="ac0096d466fedc5ec61948044af06551d"></a>
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dfreqwavn</td>
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<p>(<em>Returned</em>) Derivative of frequency with respect to wave number [m/s] (constant, <img class="formulaInl" alt="$= c$" src="form_57.png"/>, the speed of light in vacuuo), and ... </p>
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</div>
<a class="anchor" id="a34e6a4ba58cd67ef619ab48a58c8b808"></a>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dwavnfreq</td>
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<p>(<em>Returned</em>) ... vice versa [s/m] (constant, <img class="formulaInl" alt="$= 1/c$" src="form_58.png"/>, always available). </p>
</div>
</div>
<a class="anchor" id="a9c60b90b7911b9846b353991dbf38084"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dfreqvrad</td>
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<p>(<em>Returned</em>) Derivative of frequency with respect to radio velocity [/m], and ... </p>
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<a class="anchor" id="a1f9bd735b5ffa618aa0713616a3b2b87"></a>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dvradfreq</td>
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<p>(<em>Returned</em>) ... vice versa [m] (<em>wavetype</em> && <em>velotype</em>). </p>
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<div class="memproto">
<table class="memname">
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<td class="memname">double spxprm::dfreqwave</td>
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<p>(<em>Returned</em>) Derivative of frequency with respect to vacuum wavelength [/m/s], and ... </p>
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<a class="anchor" id="a90656bb22c7fdb8c750ee5a16745334c"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dwavefreq</td>
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<p>(<em>Returned</em>) ... vice versa [m s] (<em>wavetype</em>). </p>
</div>
</div>
<a class="anchor" id="aa6ef9cc07973932f19c48062199e6689"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dfreqawav</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of frequency with respect to air wavelength, [/m/s], and ... </p>
</div>
</div>
<a class="anchor" id="ac9e44005ceadafb8158df81fe022f46e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dawavfreq</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [m s] (<em>wavetype</em>). </p>
</div>
</div>
<a class="anchor" id="a25de138f15027a948887f59f79b59d91"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dfreqvelo</td>
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</table>
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<p>(<em>Returned</em>) Derivative of frequency with respect to relativistic velocity [/m], and ... </p>
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<a class="anchor" id="a6300648f1270fbd6f45fefaac054db70"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dvelofreq</td>
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</table>
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<p>(<em>Returned</em>) ... vice versa [m] (<em>wavetype</em> && <em>velotype</em>). </p>
</div>
</div>
<a class="anchor" id="a307491e5045c959ed5212c54b6e300e9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dwavevopt</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of vacuum wavelength with respect to optical velocity [s], and ... </p>
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</div>
<a class="anchor" id="a709e6f9fd2c706705a019d865280526f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dvoptwave</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [/s] (<em>wavetype</em> && <em>velotype</em>). </p>
</div>
</div>
<a class="anchor" id="a203c7de3b62de030e721e99cc0a5799b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dwavezopt</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of vacuum wavelength with respect to redshift [m], and ... </p>
</div>
</div>
<a class="anchor" id="a84d43f663df39a476b33a9516f3662eb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dzoptwave</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [/m] (<em>wavetype</em> && <em>velotype</em>). </p>
</div>
</div>
<a class="anchor" id="af252fd0c875bfe2dc99c56617ae2faa8"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dwaveawav</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of vacuum wavelength with respect to air wavelength [dimensionless], and ... </p>
</div>
</div>
<a class="anchor" id="a78d8a2235f18250cfa97a32625ab72a0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dawavwave</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [dimensionless] (<em>wavetype</em>). </p>
</div>
</div>
<a class="anchor" id="a75c591192f69d3e284d037d0216c2179"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dwavevelo</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of vacuum wavelength with respect to relativistic velocity [s], and ... </p>
</div>
</div>
<a class="anchor" id="acfdb74852a20099c1cdc3b2cc8faa03b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dvelowave</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [/s] (<em>wavetype</em> && <em>velotype</em>). </p>
</div>
</div>
<a class="anchor" id="a7e1e561ce26f9be86978783bbd0dd496"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dawavvelo</td>
</tr>
</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of air wavelength with respect to relativistic velocity [s], and ... </p>
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</div>
<a class="anchor" id="a5ab73474c2a6e92885c805cc017f6fbe"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dveloawav</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) ... vice versa [/s] (<em>wavetype</em> && <em>velotype</em>). </p>
</div>
</div>
<a class="anchor" id="a1d7633da24d461d6f791e003be2a508a"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dvelobeta</td>
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</table>
</div><div class="memdoc">
<p>(<em>Returned</em>) Derivative of relativistic velocity with respect to relativistic beta [m/s] (constant, <img class="formulaInl" alt="$= c$" src="form_57.png"/>, the speed of light in vacuu0), and ... </p>
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</div>
<a class="anchor" id="acc8a46737906be2cee7cba0b2aa09d87"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double spxprm::dbetavelo</td>
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<p>(<em>Returned</em>) ... vice versa [s/m] (constant, <img class="formulaInl" alt="$= 1/c$" src="form_58.png"/>, always available). </p>
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<a class="anchor" id="ab232cb470b7f96330512dea46791644e"></a>
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<td class="memname">struct <a class="el" href="structwcserr.html">wcserr</a> * spxprm::err</td>
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<p>(<em>Returned</em>) If enabled, when an error status is returned this struct contains detailed information about the error, see <a class="el" href="wcserr_8h.html#a1691b8bd184d40ca6fda255be078fa53" title="Enable/disable error messaging. ">wcserr_enable()</a>. </p>
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<td class="memname">void * spxprm::padding</td>
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<p>(An unused variable inserted for alignment purposes only.)</p>
<p>Global variable: const char *spx_errmsg[] - Status return messages Error messages to match the status value returned from each function. </p>
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