<?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>pi</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="_pivots_lp__Matrix_rp.html">next</a> | <a href="_pfaffians.html">previous</a> | <a href="_pivots_lp__Matrix_rp.html">forward</a> | <a href="_pfaffians.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>pi</h1> <div class="single"><h2>Description</h2> <div><p>This constant represents the mathematical constant <i>π</i>, symbolically.</p> <table class="examples"><tr><td><pre>i1 : pi o1 = pi o1 : Constant</pre> </td></tr> <tr><td><pre>i2 : +pi o2 = 3.14159265358979 o2 : RR (of precision 53)</pre> </td></tr> <tr><td><pre>i3 : numeric_100 pi o3 = 3.14159265358979323846264338328 o3 : RR (of precision 100)</pre> </td></tr> <tr><td><pre>i4 : 2. * pi o4 = 6.28318530717959 o4 : RR (of precision 53)</pre> </td></tr> </table> </div> </div> <div class="waystouse"><h2>For the programmer</h2> <p>The object <a href="_pi.html" title="">pi</a> is <span>an object of class <a href="___Constant.html" title="">Constant</a></span>.</p> </div> </div> </body> </html>