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calculator help please

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Dec 07.2006

i’ve designed a basic calculator and its working but not how i want it to. i’ve designed it (and dont want to change the design) so when the the user is inputting their calculation it all displays on the screen e.g. 1+3*5, now when someone puts a calculation in like that it does 3*5 then adds the 1 but i want it so it does the 1+3 first then multiplies by 5.

can anyone help?

thanks

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JavaScript

3 Comments(s) ↴

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@A1ien51Dec 07.2006 — alert(eval("1+3*5"));

alert(eval("(1+3)*5"));

Eric
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@supacook2kauthorDec 07.2006 — thanks for the reply but the function i have is

<i>
</i>function equals() {

document.calc.display.value=eval(document.calc.display.value);
}


is it possible to put it in the function?

is there a statement i can use to say do calculation from left to right?
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@mjdamatoDec 07.2006 — To do what you want is probably going to take some string manipulation. Doing the calculation as you want is contrary to normal operation which is to compute multiplications & divisions then additions and subtractions working left to right. It is only when putting operators within parens that you can control the logic.
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