mirror of
https://gitlab.com/harald.mueller/aktuelle.kurse.git
synced 2024-10-19 18:05:02 +02:00
167 lines
8.3 KiB
HTML
167 lines
8.3 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<title>pi</title>
|
||
|
|
<link rel="stylesheet" type="text/css" href="../../src/self.css">
|
||
|
|
<meta name="description" content="Errechnet den Nährungswert der Kreiszahl Pi">
|
||
|
|
<meta name="keywords" content="SELFPHP, PHP, Mathematische-Funktionen, pi">
|
||
|
|
<meta name="author" content="Damir Enseleit, mail@selfphp.info">
|
||
|
|
<meta name="DC.Contributer" content="Matthias Hupp, m.hupp@selfphp3.de">
|
||
|
|
<meta name="DC.Publisher" content="Damir Enseleit, mail@selfphp.info">
|
||
|
|
<meta name="DC.Date" content="2001-08-19T12:18+01:00">
|
||
|
|
<meta name="DC.Identifier" content="http://www.selfphp3.de/funktionsreferenz/mathematische_funktionen/pi.html">
|
||
|
|
<meta name="DC.Language" content="de">
|
||
|
|
<meta name="DC.Rights" content="../../editorial/index.html">
|
||
|
|
<meta name="SELF.Firstdate" content="2001-08-19T12:18+01:00">
|
||
|
|
<meta name="SELF.Version" content="1">
|
||
|
|
<meta name="SELF.Pagetype" content="Information">
|
||
|
|
<meta name="SELF.Path" content="SELFPHP == ../../index.php // Funktionsreferenz == ../index.php // Mathematische-Funktionen == index.html">
|
||
|
|
</head>
|
||
|
|
<body bgcolor="#FFFFFF" text="#000000" link="#AA5522" vlink="#772200" alink="#000000">
|
||
|
|
|
||
|
|
<table cellpadding="4" cellspacing="0" border="0" width="100%">
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#FFEEDD" class="nav"><a class="an" name="top"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a> <a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="index.html"><b>Mathematische-Funktionen</b></a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<table cellpadding="4" cellspacing="0" border="0" width="100%">
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#EEEEEE" class="doc" width="110"><img src="../../src/logo.gif" width="106" height="109" border="0" alt="SEL.html"></td>
|
||
|
|
<td bgcolor="#EEEEEE" class="doc" valign="bottom" width="100%">
|
||
|
|
<h2>pi</h2></td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#EEEEEE" class="doc" valign="top" align="center"> <img src="../../src/dokx.gif" width="30" height="20" vspace="6" border="0" alt="Informationsseite">
|
||
|
|
</td>
|
||
|
|
<td bgcolor="#FFFFFF" valign="top" nowrap colspan="2">
|
||
|
|
<p> <img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#befehl"><b>Befehl</b></a><br>
|
||
|
|
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#version"><b>Version</b></a><br>
|
||
|
|
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#beschreibung"><b>Beschreibung</b></a><br>
|
||
|
|
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#beispiel"><b>Beispiel</b></a><br>
|
||
|
|
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#ausgabe"><b>Ausgabe</b></a><br>
|
||
|
|
</p>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td colspan=3 bgcolor="#EEEEEE" class="doc"><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> </td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<h2 class="Sh2"><a class="an" name="befehl">Befehl</a></h2>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<table width="100%" cellpadding=10>
|
||
|
|
<tr>
|
||
|
|
<td class="xmpcode" bgcolor="#E4EEFF">
|
||
|
|
<p>double <b>pi</b>(void)</p>
|
||
|
|
</td>
|
||
|
|
</tr></table>
|
||
|
|
|
||
|
|
<p> </p>
|
||
|
|
|
||
|
|
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
|
||
|
|
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> 
|
||
|
|
</td></tr></table>
|
||
|
|
|
||
|
|
<h2 class="Sh2"><a class="an" name="version">Version</a></h2>
|
||
|
|
|
||
|
|
<table width="100%" cellpadding=10 height="32">
|
||
|
|
<tr>
|
||
|
|
<td class="xmpcode" bgcolor="#E4EEFF" height="20">
|
||
|
|
<p>PHP 3, PHP 4 >= 4.0b1</p>
|
||
|
|
</td>
|
||
|
|
</tr></table>
|
||
|
|
|
||
|
|
<p> </p>
|
||
|
|
|
||
|
|
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
|
||
|
|
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> 
|
||
|
|
</td></tr></table>
|
||
|
|
|
||
|
|
<h2 class="Sh2"><a class="an" name="beschreibung">Beschreibung</a></h2>
|
||
|
|
|
||
|
|
<table width="100%" cellpadding=10 height="61">
|
||
|
|
<tr>
|
||
|
|
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
|
||
|
|
<p>Mit pi() kann man sich den Näherungswert der Kreiszahl Pi zurückgeben
|
||
|
|
lassen.<br>
|
||
|
|
Dieser kann dann z.B. für Kreisberechnungen genutzt werden.</p>
|
||
|
|
<p></p>
|
||
|
|
</td>
|
||
|
|
</tr></table>
|
||
|
|
|
||
|
|
<p> </p>
|
||
|
|
|
||
|
|
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
|
||
|
|
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> 
|
||
|
|
</td></tr></table>
|
||
|
|
|
||
|
|
<h2 class="Sh2"><a class="an" name="beispiel">Beispiel</a></h2>
|
||
|
|
|
||
|
|
<table width="100%" cellpadding=10 height="66">
|
||
|
|
<tr>
|
||
|
|
<td class="xmpcode" bgcolor="#E4EEFF">
|
||
|
|
<pre><?PHP<br>$pi = pi();<br>$r = 15;<br>$kreis_flaeche = $pi * pow($r,2);<br>$kreis_flaeche = round($kreis_flaeche,2);<br>$kreis_umfang = $pi * 2 * $r;<br>$kreis_umfang = round($kreis_umfang,2);<br>echo "<b>Kreisberechnung:</b><br>";<br>echo "r = " . $r . " mm <br>";<br>echo "Pi = " . $pi . "<br>";<br>echo "Fläche = " . $kreis_flaeche . " mm² <br>";<br>echo "Umfang = " . $kreis_umfang . " mm <br>";<br>?></pre>
|
||
|
|
<p></p>
|
||
|
|
</td>
|
||
|
|
</tr></table>
|
||
|
|
|
||
|
|
<p> </p>
|
||
|
|
|
||
|
|
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
|
||
|
|
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> 
|
||
|
|
</td></tr></table>
|
||
|
|
|
||
|
|
|
||
|
|
<h2 class="Sh2"><a class="an" name="ausgabe">Ausgabe</a></h2>
|
||
|
|
|
||
|
|
<table width="100%" cellpadding=10 height="45">
|
||
|
|
<tr>
|
||
|
|
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
|
||
|
|
<p><b>Kreisberechnung:</b><br>
|
||
|
|
r = 15 mm <br>
|
||
|
|
Pi = 3.1415926535898<br>
|
||
|
|
Fläche = 706.86 mm² <br>
|
||
|
|
Umfang = 94.25 mm</p>
|
||
|
|
<p></p>
|
||
|
|
<p></p>
|
||
|
|
</td>
|
||
|
|
</tr></table>
|
||
|
|
|
||
|
|
|
||
|
|
<p> </p>
|
||
|
|
|
||
|
|
|
||
|
|
<table cellpadding="4" cellspacing="0" border="0" width="100%">
|
||
|
|
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">
|
||
|
|
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a>
|
||
|
|
</td></tr>
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">weiter:<a href="pow.html"><img src="../../src/next.gif" width="10" height="10" border="0" hspace="10" alt="weiter"></a></td>
|
||
|
|
<td bgcolor="#FFFFFF"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
|
||
|
|
<a href="pow.html"><b>pow</b></a> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">zurück:<a href="octdec.html"><img src="../../src/prev.gif" width="10" height="10" border="0" hspace="10" alt="zurück"></a></td>
|
||
|
|
<td bgcolor="#FFFFFF" width="100%"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
|
||
|
|
<a href="octdec.html"><b>octdec</b></a> </td>
|
||
|
|
</tr>
|
||
|
|
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc"> </td></tr>
|
||
|
|
</table><table cellpadding="4" cellspacing="0" border="0" width="100%">
|
||
|
|
<tr>
|
||
|
|
<td bgcolor="#FFEEDD" class="nav"><a class="an" name="bottom"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a>
|
||
|
|
<a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
|
||
|
|
<a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
|
||
|
|
<a href="index.html"><b>Mathematische-Funktionen</b></a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<p><a class="an" name="bottom">© 2001, 2002, 2003</A> <img src="../../src/mail.gif" width="15" height="10" border="0" alt="E-Mail"> <a href="mailto:mail@selfphp.info">Damir Enseleit, mail@selfphp.info</a></p>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|