Hi all, i need one help from u.when u give expression like 10+4*2-6/8 the expression should be evaluated in hierarchy order and the result will be displayed. the expression may be any longer or shorter.the operands used are +,-,*,/,mod, pow..please any one help in writing coding on this...
7  1193 
Hi all, i need one help from u.when u give expression like 10+4*2-6/8 the expression should be evaluated in hierarchy order and the result will be displayed. the expression may be any longer or shorter.the operands used are +,-,*,/,mod, pow..please any one help in writing coding on this...
I'm not sure what you are asking for; please elaborate on your problem, and ask a question.
In any computer language, to force the order of precedence of calculations use brackets () as these have the highest order of precedence in computers and mathematics
As far as I was aware, languages usually take mathematical precedence in such calculations, doing multiplications, divisions, etc, then addition and subtraction.
You can force precedence with the use of brackets though.
i know, there ia already predefined function that calculate the expression, but i need the program that perform the calculation
i know, there ia already predefined function that calculate the expression, but i need the program that perform the calculation
If you know, why are you asking us? And what are you asking for? A PHP predefined function or a user defined function? Both seem pointless and inefficient because it can be done using basic mathematics
What you are asking is to write an interpreter written in an interpreter language, i.e. PHP. That is not a good idea. If you want to develop such an interpreter you should use a compiled language, like C.
Or is this just an exercide for a class assignment?
Ronald :cool:
10+4*2-6/8
here evaluation order will be
step1-- 4*2
step2-- 6/8
step3-- 10+step1
step4--step3-step2
so accordingly arrange your variables.........
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