📄 tu2.17.htm
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<HTML>
<HEAD>
<TITLE>使用 Math 对象的方法</TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUANGE="JavaScript" TYPE="text/javascript">
<!--
document.write("以下是使用各种数学函数的效果：<P>");
document.write("<TABLE>")
document.write("<TR><TD>abs(-2)<TD> = "+Math.abs(-2));
document.write("<TD>acos(1/2)<TD> = "+Math.acos(1/2));
document.write("<TR><TD>asin(1/2)<TD> = "+Math.asin(1/2));
document.write("<TD>atan(1)<TD> = "+Math.atan(1));
document.write("<TR><TD>atan2(1,1)<TD> = "+Math.atan2(1,1));
document.write("<TD>ceil(2.414)<TD> = "+Math.ceil(2.414));
document.write("<TR><TD>cos(PI/3)<TD> = "+Math.cos(Math.PI/3));
document.write("<TD>exp(2)<TD> = "+Math.exp(2));
document.write("<TR><TD>floor(2.414)<TD> = "+Math.floor(2.414));
document.write("<TD>log(E*E)<TD> = "+Math.log(Math.E*Math.E));
document.write("<TR><TD>max(1,100)<TD> = "+Math.max(1,100));
document.write("<TD>min(1,100)<TD> = "+Math.min(1,100));
document.write("<TR><TD>pow(3,4)<TD> = "+Math.pow(3,4));
document.write("<TD>random()<TD> = "+Math.random());
document.write("<TR><TD>round(-1.433)<TD> = "+Math.round(-1.433));
document.write("<TD>sin(PI/4)<TD> = "+Math.sin(Math.PI/4));
document.write("<TR><TD>sqrt(16)<TD> = "+Math.sqrt(16));
document.write("<TD>tan(PI/4)<TD> = "+Math.tan(Math.PI/4));
document.write("</TABLE>")
-->
</SCRIPT>
</BODY>
</HTML>
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