Solve the JS floating point (decimal) calculation subtraction bug

The/** **  addition function, which is used to obtain the exact addition  **  explanation: the addition result of JavaScript will be error, which will be obvious when the two floating-point numbers are added. This function returns a more accurate addition result.  **  Call: Accadd (ARG1,ARG2)  **  return value: Arg1 plus arg2 precise results  **/function accadd (arg1,  ARG2)  {    var r1, r2, m, c;    try {         r1 = arg1.tostring (). Split (".") [1].length;    }    catch  (e)  {         r1 = 0;    }    try {         r2 = arg2.tostring (). Split (".") [1].length;    }    catch  (e)  {         r2 = 0;    }    c =  Math.Abs (R1 - R2);     m = math.pow (10, MATH.MAx (R1, R2));    if  (c > 0)  {         var cm = math.pow (10, c);         if  (R1 > R2)  {             arg1 = number (Arg1.tostring (). Replace (".",  ""));             arg2 = number (Arg2.tostring (). Replace (".",  ""))  *  cm;        } else {             arg1 = number (Arg1.tostring (). Replace (".",  ""))   * cm;            arg2 = number ( Arg2.tostring (). Replace (".",  ""));        }     } else {   &Nbsp;    arg1 = number (Arg1.tostring (). Replace (".",  ""));         arg2 = number (Arg2.tostring (). Replace (".",  ""));     }    return  (ARG1 + ARG2)  / m;} Adding an Add method to the number type makes it more convenient to call. number.prototype.add = function  (ARG)  {    return accadd (ARG,  this);};

/** **  subtraction function, used to get the exact subtraction result  **  explanation: JavaScript subtraction results will be error, when the two floating-point number subtraction will be more obvious. This function returns a more accurate subtraction result.  **  Call: Accsub (ARG1,ARG2)  **  return value: Arg1 plus arg2 precise results  **/function accsub (arg1,  ARG2)  {    var r1, r2, m, n;    try {         r1 = arg1.tostring (). Split (".") [1].length;    }    catch  (e)  {         r1 = 0;    }    try {         r2 = arg2.tostring (). Split (".") [1].length;    }    catch  (e)  {         r2 = 0;    }    m =  Math.pow (10, math.max (R1, R2)); //last modify by deeka Dynamic control accuracy Length     n =  (R1 >= R2)  ? r1 : r2;     return  ((arg1 * m - arg2 * m)  / m). toFixed (n);}   Adds a Mul method to the number type, which is more convenient to call. number.prototype.sub = function  (ARG)  {    return accmul (ARG,  this);};

 /** **  multiplication function to get accurate multiplication results  **  description: JavaScript multiplication results in errors, which are more noticeable when multiplying two floating-point numbers. This function returns a more accurate multiplication result.  **  Call: Accmul (ARG1,ARG2)  **  return value: arg1 times the exact result of  arg2  **/function accmul (Arg1,  ARG2)  {    var m = 0, s1 = arg1.tostring (),  S2 = arg2.tostring ();    try {         m += s1.split (".") [1].length;    }    catch  (e)  {    }     try {        m += s2.split (".") [1].length;    }    catch  (e)  {    }     return number (S1.replace (".",  "))  * number (S2.replace (". ", " "))  / math.pow (10, m);}   Adds a Mul method to the number type, which is more convenient to call. number.prototype.mul = function  (ARG)  {    return accmul (arg, this);}; 

/**  **  division function, which is used to get the exact division result  **  Description: The division result of JavaScript will be error, it will be more obvious when the two floating-point numbers divide. This function returns a more accurate division result.  **  Call: Accdiv (ARG1,ARG2)  **  return value: Arg1 divided by arg2 exact result  **/function accdiv (arg1,  ARG2)  {    var t1 = 0, t2 = 0, r1, r2;     try {        t1 = arg1.tostring (). Split (".") [1].length;    }    catch  (e)  {    }     try {        t2 = arg2.tostring (). Split (".") [1].length;    }    catch  (e)  {    }     with  (Math)  {        r1 =  Number (arg1.tostring (). Replace (".",  ""));        r2 =  Number (arg2.tostring (). Replace (".",  ""));        return  (R1  / R2)  * pow (10, T2 - T1);     }}//adds a Div method to the number type, More convenient to call. number.prototype.div = function  (ARG)  {    return accdiv (this,  ARG);};

Solve the JS floating point (decimal) calculation subtraction bug