JavaScript Math exp 方法 JavaScript Math cos 方法 JavaScript Math floor 方法 JavaScript Math exp 方法 <html> <head> <title>JavaScript Math exp() Method</title> </head> <body> <script type = "text/javascript"> var value = Math.exp(1); document.write("First Test Value : " + value ); var value = Math.exp(30); document.write("<br />Second Test Value : " + value ); var value = Math.exp(-1); document.write("<br />Third Test Value : " + value ); var value = Math.exp(.5); document.write("<br />Fourth Test Value : " + value ); </script> </body> </html> JavaScript Math cos 方法 JavaScript Math floor 方法