■センチ(cm)からインチ(in)へ変換

　センチ(cm)からインチ(in)へ変換するには0.3937を乗算すればよい。

1 cm = 0.3937 in

function cm_to_in(n)
{
    return n * 0.3937;
}

[目次に戻る]

実際のコード [src/]

■JavaScript (HTML)
<html>

			<head>

			<title>?Z???`(cm)?????C???`(in)?÷????</title>

			<script language="JavaScript" type="text/javascript">

			<!--

			function cm_to_in(n)

			{

				return n * 0.3937;

			}

			--></script>

			</head>

			<body>

			<h1>?Z???`(cm)?????C???`(in)?÷????</h1>

			<form>

			?@?@?@?@?Z???`?F<input type="text" name="cm"><br>

			?C???`?i??? ?j?F<input type="text" name="inch"><br>

			<input type="button" value="????????" onClick="this.form.inch.value=cm_to_in(eval(this.form.cm.value))"

			</form>

			</body>

			</html>

■JavaScript (Photoshop CS)
n = parseFloat(prompt("cm value = ",1));

			n = n * 0.3937;

			alert(n);

■Python
import sys

			

			n = float(sys.argv[1])

			print n * 0.3937

■Perl
#!/usr/bin/perl

			

			$n = $ARGV[0];

			$n = $n * 0.3937;

			print "$n\n";

■Ruby
#!/usr/bin/ruby

			

			n = $*[0].to_f * 0.3937

			print n,"\n"

■C
#include <stdio.h>

			

			int main(int argc, char *argv[])

			{

				double n;

				n = atoi(argv[1]);

				printf("%f\n",n*0.3937);

			}

■Java
import java.io.*;

			

			class unitcalc{

				public static void main(String args[]){

				double n=Double.valueOf(args[0]).doubleValue();

				System.out.println(n * 0.3937);

				}

			}

■AppleScript
set result to display dialog "cm = " default answer "1"

			set n to text returned of result

			set n to 0.3937 * n

			display dialog n

■awk【別ファイルデータを読み込んで処理】
#!/usr/bin/awk -f

			

			{

				n = $0;

			}

			

			END {

				print "result =" , n * 0.3937

			}

■Microsoft Excel 2004 (MacOS X)
=A2*0.3937