degrees関数が標準で入ってないのはなんでなのでしょうか・・・。
Math.degrees = function(radian){
if(isNaN(radian)){
return NaN;
}
return radian * 360/(2*Math.PI);
}
More than 5 years have passed since last update.
degrees関数が標準で入ってないのはなんでなのでしょうか・・・。
Math.degrees = function(radian){
if(isNaN(radian)){
return NaN;
}
return radian * 360/(2*Math.PI);
}
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