<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >gmp_sqrtrem</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="GMP Functions" HREF="ref.gmp.html"><LINK REL="PREVIOUS" TITLE="gmp_sqrt" HREF="function.gmp-sqrt.html"><LINK REL="NEXT" TITLE="gmp_strval" HREF="function.gmp-strval.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></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" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.gmp-sqrt.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.gmp-strval.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.gmp-sqrtrem" ></A >gmp_sqrtrem</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN65056" ></A ><P > (PHP 4 >= 4.0.4, PHP 5)</P >gmp_sqrtrem -- Square root with remainder </DIV ><DIV CLASS="refsect1" ><A NAME="AEN65059" ></A ><H2 >Description</H2 >array <B CLASS="methodname" >gmp_sqrtrem</B > ( resource a )<BR ></BR ><P > Returns array where first element is the integer square root of <CODE CLASS="parameter" >a</CODE > (see also <A HREF="function.gmp-sqrt.html" ><B CLASS="function" >gmp_sqrt()</B ></A >), and the second is the remainder (i.e., the difference between <CODE CLASS="parameter" >a</CODE > and the first element squared). </P ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN65071" ></A ><P ><B >例 1. <B CLASS="function" >gmp_sqrtrem()</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">list(</font><font color="#0000BB">$sqrt1</font><font color="#007700">, </font><font color="#0000BB">$sqrt1rem</font><font color="#007700">) = </font><font color="#0000BB">gmp_sqrtrem</font><font color="#007700">(</font><font color="#DD0000">"9"</font><font color="#007700">);<br />list(</font><font color="#0000BB">$sqrt2</font><font color="#007700">, </font><font color="#0000BB">$sqrt2rem</font><font color="#007700">) = </font><font color="#0000BB">gmp_sqrtrem</font><font color="#007700">(</font><font color="#DD0000">"7"</font><font color="#007700">);<br />list(</font><font color="#0000BB">$sqrt3</font><font color="#007700">, </font><font color="#0000BB">$sqrt3rem</font><font color="#007700">) = </font><font color="#0000BB">gmp_sqrtrem</font><font color="#007700">(</font><font color="#DD0000">"1048576"</font><font color="#007700">);<br /><br />echo </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt1</font><font color="#007700">) . </font><font color="#DD0000">", " </font><font color="#007700">. </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt1rem</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">; <br />echo </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt2</font><font color="#007700">) . </font><font color="#DD0000">", " </font><font color="#007700">. </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt2rem</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">; <br />echo </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt3</font><font color="#007700">) . </font><font color="#DD0000">", " </font><font color="#007700">. </font><font color="#0000BB">gmp_strval</font><font color="#007700">(</font><font color="#0000BB">$sqrt3rem</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">; <br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > The printout of the above program will be: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >3, 0 2, 3 1024, 0</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></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.gmp-sqrt.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.gmp-strval.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >gmp_sqrt</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.gmp.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >gmp_strval</TD ></TR ></TABLE ></DIV ></BODY ></HTML >