Help with function

Question

Hi im trying to write pow function, i know that i can use <math.h> at top of my code but the deal is i cannot use that in my code so i need to write a function  for pow and its get call in int main(), its taking value from user and givinf out put help,plz
thz

Answer 1

I hope you are aware we are not here to give answers to homework assignments. However, I'm guessing the teacher wants you to use other functions in place of pow(). exp() and ln() come to mind.

Answer 2

Do you know how to do it with a pencil?  That is the first step.  You can't write code without an algorithm.

Tell us or show us what you have so far.  And ask a specific question.

Answer 3

Hi AS u said i know how to write it by pencil,

pow(x,y)
X^y = answer

2^3 = 8

but in c++ we cannot use "  ^ " sign so is there anything that can replace that " ^ " in c++.
thx

Answer 4

...and that is how it is done. If what you wrote does not make it any clearer, perhaps you should write it out using words, and not math symbols.

So, what does pow do? It takes two arguments, one is the number in question, the other is going to be the number of times that you multiply the first number by itself to achieve the desired result. Loops work well for this. You also need to return a result.

So, you have a basic for loop to write, if you choose to do it that way. You will need to choose an appropriately large return type, because you are writing a function that could potentially return a very large integer. You will need to accept two integers as parameters.