Thread: square of 2 numbers

I want to add square of 2 numbers and get the average...........
but dont know to get the square of a number in C
please post the keyword to get square or cube.........thanks

Code:

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#include <stdio.h>
#include <math.h>

int main() {
  int a = 2;
  int b = 3;
  int square  = pow(a, 2) + pow(b, 2);
  int average = square / 2;
  printf("square == %d || average == %d\n", square, average);
  return 0;
}

Originally Posted by raveen1001

I want to add square of 2 numbers and get the average...........
but dont know to get the square of a number in C
please post the keyword to get square or cube.........thanks

Sounds like a job for pow(x,y).

Code:

#include math.h
#include stdio.h

int main(void) {
  double x, y;
  x = 2.0;
  y = 3.0;

  printf("%lf raised to %lf is %lf", x, y, pow(x,y));

  return 0;
}

He mentioned getting the cube of a number also. I inferred from that, and the the tone of his post, that he didn't want to just use number * number, for his answers.

By this if he want to do x^n then he have to write

Code:

const int ans = x * x * x * x * x ............ n times of what ?????

wat is the use of pow anyway?..just newby

pow() is an API provided by <math.h>

lets say u want to do 7 ^ 8 then u just simply call this API pow(7, 8)

u have to decide which is better

Code:

int result = 1;
for (unsigned int index = 0; index < 8; ++index) {
  result *= 7;
}

OR
unsigned int result = pow(7, 8);

Code:

or on shell just say man pow

even i dont understand why i will go for lookup table as i m having the reach to math.h