<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >exp</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Manual PHP" HREF="index.html"><LINK REL="UP" TITLE="Mathematical Functions" HREF="ref.math.html"><LINK REL="PREVIOUS" TITLE="deg2rad" HREF="function.deg2rad.html"><LINK REL="NEXT" TITLE="expm1" HREF="function.expm1.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-2"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Manual PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.deg2rad.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.expm1.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.exp" ></A >exp</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN50298" ></A ><P > (PHP 3, PHP 4 , PHP 5)</P >exp -- Calculates the exponent of <TT CLASS="constant" ><B >e</B ></TT > (the Neperian or Natural logarithm base)</DIV ><DIV CLASS="refsect1" ><A NAME="AEN50302" ></A ><H2 >Description</H2 >float <B CLASS="methodname" >exp</B > ( float arg)<BR ></BR ><P > Returns <TT CLASS="constant" ><B >e</B ></TT > raised to the power of <VAR CLASS="parameter" >arg</VAR >. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Notã: </B > 'e' is the base of the natural system of logarithms, or approximately 2.718282. </P ></BLOCKQUOTE ></DIV ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN50316" ></A ><P ><B >Exemplu 1. <B CLASS="function" >exp()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /></font><font color="#007700">echo </font><font color="#0000BB">exp</font><font color="#007700">(</font><font color="#0000BB">12</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />echo </font><font color="#0000BB">exp</font><font color="#007700">(</font><font color="#0000BB">5.7</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > The above example will output: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >1.6275E+005 298.87</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > See also <A HREF="function.log.html" ><B CLASS="function" >log()</B ></A > and <A HREF="function.pow.html" ><B CLASS="function" >pow()</B ></A >. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.deg2rad.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Acasã</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.expm1.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >deg2rad</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.math.html" ACCESSKEY="U" >Sus</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >expm1</TD ></TR ></TABLE ></DIV ></BODY ></HTML >