# Chorme Subtraction Floating point processing

Source: Internet
Author: User
Tags mul

In the process of simple 1-0.7 found that the results of Chorme to 0.30000000000000004, instant egg pain, the data can be used?! Then went to Baidu found a simple two number of subtraction, and then modified the next, in addition to Division can be more than the number of operations. That way 3 numbers are added without having to set an add function. Original URL: http://www.2cto.com/kf/201502/376763.htmlfunction Add () {    var e,arr=[0],result = 0;    for ( var i = 0; i < arguments.length; i++) {        Try {            Arr.push (Arguments[i].tostring (). Split (". ") [1].length);       } catch (f) {}   };    Arr.sort (function (A, B) {return (B-A)} );    E = Math.pow (ten, arr[0]);    for (var i = 0; i < arguments.length; i++) {        Try {            result + mul (arguments[i],e)        } catch (f ) {}   };    return result/e;}  function Sub () {    var e,arr=[0],result;    for (var i = 0; i < arguments.length; i++) {&nbs P       Try {        &NBSp   Arr.push (Arguments[i].tostring (). Split (".") [1].length);       } catch (f) {}   };    Arr.sort (function (A, B) {return (B-A)});     E = Math.pow (ten, arr[0]);    result = Mul (arguments[0],e);    for (var i = 1; i < arg Uments.length; i++) {        Try {            Result-= Mul (arguments[i],e)   &NBSP ;    } catch (f) {}   };    return result/e;}  function Mul () {    var result = 1,c = 0;    for (var i = 0; i < arguments.length; i++) {&nbs P       Try {            C + = Arguments[i].tostring (). Split (".") [1].length;       } catch (f) {}   };    for (var i = 0; i < arguments.length ; i++) {        result *= number (arguments[i].tostring (). Replace (".", ""));   };  &nbsp ; Result/= Math.pow (ten, C);    return result;}  function Div (A, b) {    var c, d, E = 0,        f = 0;    Try {        E = a.tostring (). Split (".") [1].length;   } catch (g) {}    try {        f = b.tostring (). Split (".") [1].length;   } catch (g) {}    return c = number (a.tostring (). Replace (".", "")), d = Number (B.tostri Ng (). Replace (".", ""), Mul (C/D, Math.pow (F-E));}

Chorme Subtraction Floating-point number processing

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