Breaking News: Grepper is joining You.com. Read the official announcement!

exponents without pow c

Renato Freitas answered on December 23, 2023 Popularity 3/10 Helpfulness 2/10

answer exponents without pow c

exponents without pow c

Comment

///only for base and exponent natural numbers (0,1,2,3,4,5,6,7,8....)
//this solution has no multiplications :)
//for education purposes
#include <stdio.h>

double power(double base, double exponent){
  ///To understand 2^5
    int result1=0,result=0;
  //first we calculate the square of the number: 2^2=2+2
    for(int j=0;j<base;j++){
        result1=result1+base;
     }
     if(exponent==2){//if exponent equals 2, we already have the solution
         result=result1;
     }
     if(exponent==1){//if exponent equals 1, the solution is the base
         result=base;
     }
     if(exponent==0){//if exponent equals 0, the solution is 1 
         result=1;
     }
  //with two for cycles we do the job for exponents higher than 2
  //right this:
//2^2=2+2
 //2^3=2(2+2)
  //2^4=2(2(2+2))
     for(int i=0;i<exponent-2;i++){//we iterate for exponents higher than 2
         result=0;///we reset the result first
         for(int k=0;k<base;k++){
             result=result+result1;
         }
         result1=result;
       //result1 will be equal to 2^3, 2^4 and in the final to 2^5
       //we save result in the variable result1 and reuse it in the inner for cycle
     }
     return result;
}

int main()
{
   do{
    int base=0;
    int exponent=0;
    printf("\n\nEnter the base:\n");
    scanf("%d",&base);
    printf("Enter the exponent:\n");
    scanf("%d",&exponent);
    printf("=%G",power(base,exponent));
    }while(1);
    return 0;
}

Popularity 3/10 Helpfulness 2/10 Language c

Source: Grepper

Tags: c pow

Link to this answer
Share Copy Link

Contributed on Dec 23 2023

Renato Freitas

0 Answers Avg Quality 2/10

exponents without pow c

Contents

More Related Answers

exponents without pow c

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.