Algorithm: Four six into 50% pairs, reserved three digits of valid digits

/// <summary>///formatting Decimal numbers for efficient calculation/// </summary>/// <param name= "ori" ></param>/// <returns></returns>/// <remarks></remarks> Public Static decimalFormatdecimal (decimalOri) {    if(Ori = =0) {        return 0; }    decimalnum =The Ori; decimalresult =0m; intZoome =1; //Number less than 100, the number is magnified by 10, until the number is greater than or equal to     while(Num < -) {num= num *Ten; Zoome= Zoome *Ten; }    intInt1 =Math.floor (num); decimalD1 = Math.floor (num) +0.5; //four six in//5 See Mantissa and parity    if(Num >D1) {        //If there is a mantissa after 5, carryresult = Int1 +1; } Else if(num = =D1) {        //look at the previous one even unchanged, odd +1        if(Int1%2==0) {result=int1; } Else{result= Int1 +1; }    } Else {        //integerresult =int1; }    //effective numbers are reduced to the original order of magnituderesult = result/zoome; returnresult;}/// <summary>///format string Displays Decimal digits/// </summary>/// <param name= "ori" ></param>/// <returns></returns>/// <remarks></remarks> Public Static stringShowdecimal (decimalOri) {    if(Ori = =0) {        return "0"; }    //first get formatted data, valid numbersOri =Formatdecimal (ORI); stringStrnum =""; decimalnum =The Ori; //determine if 3 digits and 3 digits are directly taken as integral parts    if(Num >= -) {Strnum=Num.    ToString (); } Else if(Num >0) {        //less than three digits, which involves taking a decimal point        strings =Num.        ToString (); //no decimal point, first number of decimal places        if(S.contains (".") ) {s= S +"xx"; } Else{s= S +". XX"; }        //traversing 3-bit valid digits        Char[] Array =S.tochararray (); intStart =0;  for(inti =0; I <= array. Length-1; i++) {            if(Start = =3) {                 Break;//todo:might not being correct. Was:exit for            }            if(Array[i] = =".") {Strnum= Strnum +"."; } Else {                intt =int.                Parse (Array[i]); if(T >0) {Start= Start +1; Strnum= Strnum +T; } Else if(T = =0) {                    if(Start >0) {Start= Start +1; Strnum= Strnum +T; } Else{strnum= Strnum +T; }                }            }        }    }    returnStrnum;}

Algorithm: Four six into 50% pairs, reserved three digits of valid digits