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JavaScript peut vous aider de la circonférence d'un cercle lorsque vous entrez dans le rayon.

Label: Circonférence Calculatrice

Rapport ï¿½ nous de cette erreur JavaScript

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<SCRIPT LANGUAGE="JavaScript">
// Andrew Jones (andrew.jones@net.ntl.com)
<!-- Begin
function calculate() {
var radius=prompt("Please enter the size of the radius","");
var pi=3.14159265359;  // estimated to 11 decimal places
var circ=2*pi*radius;
var d=alert("The circumference of a circle with radius "+radius+" is "+circ+".")
}
// End -->
</script>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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<input type=button value="   Calculate Circumference   " onClick="calculate()">
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->