<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- --> <!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" > <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head><title>printingPrecision -- current precision for printing numbers</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="_printing__Separator.html">next</a> | <a href="_printing__Lead__Limit.html">previous</a> | <a href="_printing__Separator.html">forward</a> | <a href="_printing__Lead__Limit.html">backward</a> | up | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div> </td> </tr> </table> <hr/> <div><h1>printingPrecision -- current precision for printing numbers</h1> <div class="single"><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>printingPrecision = n</tt></div> </dd></dl> </div> </li> <li><div class="single">Inputs:<ul><li><span><tt>n</tt>, <span>an <a href="___Z__Z.html">integer</a></span></span></li> </ul> </div> </li> <li><div class="single">Consequences:<ul><li>Henceforth, inexact numbers are printed with at most <tt>n</tt> digits of precision. Meaningless digits will not be displayed. The special case where <tt>n=0</tt> is interpreted as meaning <tt>n=infinity</tt>, and this case is used when a number appears alone on an output line to display all the meaningful digits.</li> </ul> </div> </li> </ul> </div> <div class="single"><h2>Description</h2> <div><table class="examples"><tr><td><pre>i1 : 1/3p100 o1 = .333333333333333333333333333333 o1 : RR (of precision 100)</pre> </td></tr> <tr><td><pre>i2 : {1/3p100} o2 = {.333333} o2 : List</pre> </td></tr> <tr><td><pre>i3 : printingPrecision o3 = 6</pre> </td></tr> <tr><td><pre>i4 : printingPrecision = 16 o4 = 16</pre> </td></tr> <tr><td><pre>i5 : {1/3p100} o5 = {.3333333333333333} o5 : List</pre> </td></tr> <tr><td><pre>i6 : printingPrecision = 0 o6 = 0</pre> </td></tr> <tr><td><pre>i7 : {1/3p100} o7 = {.333333333333333333333333333333} o7 : List</pre> </td></tr> </table> <p>For complex numbers, if <a href="_printing__Accuracy.html" title="current accuracy for printing numbers">printingAccuracy</a> is set to its default value of <tt>-1</tt>, the two parts of the number are treated together (although a digit further further to the right of the point may sometimes be displayed in the smaller part).</p> <table class="examples"><tr><td><pre>i8 : printingAccuracy o8 = -1</pre> </td></tr> <tr><td><pre>i9 : printingPrecision = 16 o9 = 16</pre> </td></tr> <tr><td><pre>i10 : {1p100e12/3+1p100/3*ii} o10 = {333333333333.3333+.33333*ii} o10 : List</pre> </td></tr> <tr><td><pre>i11 : printingAccuracy = 10 o11 = 10</pre> </td></tr> <tr><td><pre>i12 : {1p100e12/3+1p100/3*ii} o12 = {333333333333.3333+.3333333333*ii} o12 : List</pre> </td></tr> </table> </div> </div> <div class="single"><h2>See also</h2> <ul><li><span><a href="_printing__Accuracy.html" title="current accuracy for printing numbers">printingAccuracy</a> -- current accuracy for printing numbers</span></li> <li><span><a href="_printing__Lead__Limit.html" title="maximum number of leading zeroes to use when printing real numbers">printingLeadLimit</a> -- maximum number of leading zeroes to use when printing real numbers</span></li> <li><span><a href="_printing__Trail__Limit.html" title="maximum number of additional trailing digits to use when printing real numbers">printingTrailLimit</a> -- maximum number of additional trailing digits to use when printing real numbers</span></li> <li><span><a href="_printing__Separator.html" title="string used to separate mantissa from exponent when printing real numbers">printingSeparator</a> -- string used to separate mantissa from exponent when printing real numbers</span></li> <li><span><a href="_format.html" title="format a string or a real number">format</a> -- format a string or a real number</span></li> </ul> </div> <div class="waystouse"><h2>For the programmer</h2> <p>The object <a href="_printing__Precision.html" title="current precision for printing numbers">printingPrecision</a> is <span>an <a href="___Z__Z.html">integer</a></span>.</p> </div> </div> </body> </html>