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Re: Bignumb subtraction in anybase

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Den lördag 21 mars 2015 kl. 10:11:20 UTC+1 skrev jonas.t...@gmail.com:
> Have i missed anything?
> 
> /* SUBTRACT TWO VARIABLE */
> 
> function naiveSub(base,arrOne,arrTwo) {
> document.calc.trash.value="5";
> for (i=0;i<length;i++){ 
>          if(arrOne[i]<arrTwo[i]){arrOne[i]+=base; 
>              j=i;
>              while (arrOne[j+1]==0) {arrOne[j+1]+=base;
>              j++;
>              LoopedTrue=1;
>           }
>           if (LoopedTrue==1){arrOne[j+1]=arrOne[j+1]-1;}
>           j=0;LoopedTrue=0;
>           result[i]=arrOne[i]-arrTwo[i];            
>    } 
> if (result[i]==0) result.splice(i++, 1);
> }
> 
> ************************************************************************
> The full programs so far, the real expression parser will have to wait until the operands work.
> 
> <SCRIPT LANGUAGE="Javascript">
> 
> 
> /*MULTIPLY TWO VARIABLES*/
> 
> function naiveMult(base,arrOne,arrTwo) {
> 
> document.calc.trash.value="hello";
> }
> 
> /* SUBTRACT TWO VARIABLE */
> 
> function naiveSub(base,arrOne,arrTwo) {
> document.calc.trash.value="5";
> for (i=0;i<length;i++){ 
>          if(arrOne[i]<arrTwo[i]){arrOne[i]+=base; 
>              j=i;
>              while (arrOne[j+1]==0) {arrOne[j+1]+=base;
>              j++;
>              LoopedTrue=1;
>           }
>           if (LoopedTrue==1){arrOne[j+1]=arrOne[j+1]-1;}
>           j=0;LoopedTrue=0;
>           result[i]=arrOne[i]-arrTwo[i];            
>    } 
> if (result[i]==0) result.splice(i++, 1);
> }
> 
> /*ADD TWO VARIABLES*/
> 
> function naiveAdd(base,arrOne,arrTwo) {
> remainder=0;
> for (i=0;i<length;i++){ 
> result[i]=arrOne[i]+arrTwo[i]+remainder; 
> if (result[i]>=base) { result[i]=result[i]-base; remainder=1;} 
> else {remainder=0;} 
> } 
> if (remainder==1) result[i++]=1; else result.splice(i, 1);;
> }
> 
> /*PREPARE STRING PAIR*/
> 
> function strPrep(sign,strOne,strTwo) {
> document.calc.trash.value="2";
> if (sign=="-" && strOne<strTwo){ temp=strOne; strOne=strTwo; strTwo=temp; }
> arrOne=strOne.split("");
> arrTwo=strTwo.split("");
> arrOne.reverse();
> arrTwo.reverse();
> if (arrOne.length>=arrTwo.length) {length=arrOne.length;} else {length=arrTwo.length;}
> for (i=0;i<length;i++){
> 		arrOne[i]=parseInt(arrOne[i]);
> 		arrTwo[i]=parseInt(arrTwo[i]);
> 		if (isNaN(arrOne[i])) arrOne[i] = 0;
> 		if (isNaN(arrTwo[i])) arrTwo[i] = 0;
> 	}
> }
> 
> /* MULTIPLY Container*/
> 
> function multWrap(sign,strEval,strBase){
> strOne=adder[0];
> strTwo=adder[1];
> strPrep(strOne,strTwo);
> naiveMult(base,arrOne,arrTwo);
> out=result.reverse().toString();
> document.calc.result.value=out;
> }
> 
> /* SUBTRACTION Container*/
> 
> function subWrap(sign,strEval,strBase){
> document.calc.trash.value="4";
> strOne=subtract[0];
> strTwo=subtract[1];
> strPrep(sign,strOne,strTwo);
> naiveSub(base,arrOne,arrTwo);
> out=result.reverse().toString();
> document.calc.result.value=out;
> }
> 
> /* ADDITION Container*/
> 
> function addWrap(sign,strEval,strBase){
> strOne=adder[0];
> strTwo=adder[1];
> strPrep(strOne,strTwo);
> naiveAdd(base,arrOne,arrTwo);
> out=result.reverse().toString();
> document.calc.result.value=out;
> }
> 
> /*PARSE THE STRING*/
> 
> function parser(strEval,strBase){
> document.calc.trash.value="2";
> //sign="*";
> //multiply=strEval.split("*");
> //multWrap(sign,multiply,strBase)
> sign="-";
> subtract=strEval.split("-");
> subWrap(sign,subtract,strBase);
> //sign="+";
> //adder=strEval.split("+");
> //addWrapper(sign,adder,strBase);
> }
> 
> /*[MAIN PROGRAM]*/
> /*[TAKE INPUT FROM FORM] [PARSE THE STRING] [CALCULATE RESULT]*/
> /*[GENERIC CALCULATIONS] [USING BIGNUMB OPERATORS] [IN ANYBASE] [UPON OPERANDS] */
> 
> function fetchValues(){
> 
>  strEval = document.calc.eval.value;
>  strBase = document.calc.formbase.value;
>  document.calc.trash.value="1";
>  base=parseInt(strBase);
>  parser(strEval,strBase);
> 
>  
> }
> 
> /*GLOBAL*/
> var subtract = [];
> var adder  = [];
> var arrOne = [];
> var arrTwo = [];
> var result = [];
> length; base=10;temp="";
> 
> </SCRIPT>
> 
> <HTML>
> <BODY>
> <FORM name=calc onSubmit="fetchValues(); return false;">
> BASE <input type="text" name="formbase" value="10" size="4"><br>
> <input type=submit name="calc" value="Calc"><input type="text" name="eval" value="7000-6" size="80"><br>
> RESULT<input type="text" name="result" value="" size="80"><br>
> Trash<input type="text" name="trash" value="" size="80"><br>
> </FORM>
> </BODY>
> </HTML>

Well a lack of paranthese, and i forgot that to carry the borrow down with one for consecutive zeros.

/* SUBTRACT TWO VARIABLE */

function naiveSub(base,arrOne,arrTwo) {
document.calc.trash.value="5";
for (i=0;i<length;i++){ 
         if(arrOne[i]<arrTwo[i]){arrOne[i]+=base; 
             		j=i;
             		while (arrOne[j+1]==0) {arrOne[j+1]+=base-1; j++; LoopedTrue=1;}
          }
          if (LoopedTrue==1){arrOne[j+1]=arrOne[j+1]-1;}
          j=0;LoopedTrue=0;
          result[i]=arrOne[i]-arrTwo[i];            
   } 
if (result[i]==0) result.splice(i++, 1);
}

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Bignumb subtraction in anybase jonas.thornvall@gmail.com - 2015-03-21 02:11 -0700
  Re: Bignumb subtraction in anybase jonas.thornvall@gmail.com - 2015-03-21 02:23 -0700
    Re: Bignumb subtraction in anybase jonas.thornvall@gmail.com - 2015-03-21 02:40 -0700
      Re: Bignumb subtraction in anybase jonas.thornvall@gmail.com - 2015-03-21 03:12 -0700
        Re: Bignumb subtraction in anybase jonas.thornvall@gmail.com - 2015-03-21 03:55 -0700

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