25 lines
662 B
JavaScript
25 lines
662 B
JavaScript
|
// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
|
||
|
|
var $export = require('./_export')
|
||
|
|
, abs = Math.abs;
|
||
|
|
|
||
|
|
$export($export.S, 'Math', {
|
||
|
|
hypot: function hypot(value1, value2){ // eslint-disable-line no-unused-vars
|
||
|
|
var sum = 0
|
||
|
|
, i = 0
|
||
|
|
, aLen = arguments.length
|
||
|
|
, larg = 0
|
||
|
|
, arg, div;
|
||
|
|
while(i < aLen){
|
||
|
|
arg = abs(arguments[i++]);
|
||
|
|
if(larg < arg){
|
||
|
|
div = larg / arg;
|
||
|
|
sum = sum * div * div + 1;
|
||
|
|
larg = arg;
|
||
|
|
} else if(arg > 0){
|
||
|
|
div = arg / larg;
|
||
|
|
sum += div * div;
|
||
|
|
} else sum += arg;
|
||
|
|
}
|
||
|
|
return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
|
||
|
|
}
|
||
|
|
});
|