Question

code in c please

Concepts to Practice User-written functions math.h Description For the prelab assignment, you are to write a function to calculate Power (exponentiation). Your function will be called MyPower. MyPower() will raise a given double type number to a positive integer power. You may NOT call any function from math.h such as pow) in your implementation of MyPower) The main) function in your program should look exactly like this: int main(void) int i,j; for (i-1;i<5;i++) { for (j-1;j<5;j++) { DoTest(i,j); } You will write a DoTest() function which should: Have a prototype of void DoTest(double base, int exponent); 1. Print a message saying that you are testing base (that is, the value passed in as base) to the exponent (that is, the value passed in as exponent) power. 2. Compare the result of raising base to exponent using the MyPower() function that you wrote with the result of raising base to exponent using the powl) function that is prototyped in math.h. If these two results are not equal, print a message indicated the value from the powl) function was expected, but the value from MyPower() was the result. 3.

Answer 1

Solution:

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

double MyPower(double base, int exponent){
double res = 1;
for(int i = 0; i < exponent; i++){
res *= base;
}
  
return res;
}

void DoTest(double base, int exponent){
printf("Testing %lf to the %d power:\n", base, exponent);
double resMypower = MyPower(base, exponent);
double resPow = pow(base, exponent);
  
if(resMypower != resPow){
printf("\t%lf was expected, but %d was the result.\n", base, exponent);
}
}

int main()
{
   int i,j;
for(i = 1; i < 5; i++){
for(j = 1; j < 5; j++){
DoTest(i,j);
}
}
   return 0;
}

Code screenshot:

#include < stdio.h #include <math . h> 1 2. 3 double MyPower(double base, int exponent){ 4 double res 5 1; for (int i 0; i< exponent; it+){ 6 = res base; 7 8 9 return res; 10 11 12 void DoTest(double base, int exponent){ 13 printf("Testing %lf to the %d power:\n", base, exponent); double resMypower double res Pow 14 My Power (base, exponent) 15 pow(base, exponent); 16 17 if (resMypower != resPow){ printf("\t%1f 18 19 expected, but %d was the result.\n", base, exponent); was } 20 21 Ln LC

} 21 22 int main() 23 24 int i,j 25 for (i 1; i5; itt){ 26 for (j 1; j< 5; j++){ Do Test(i,j) 27 28 29 30 return 0; 31 } 32 33 m un Nm

Output:

PTesting 1.000000 to the 1 power: Testing 1.000000 to the 2 power: Testing 1.000000 to the 3 power: Testing 1.000000 to the 4 power: Testing 2.000000 to the 1 power: Testing 2.000000 to the 2 power Testing 2.000000 to the 3 power: Testing 2.0e0000 to the 4 power: Testing 3.0e0000 to the 1 power: Testing 3.0e0000 to the 2 power: Testing 3.0e0000 to the 3 power: Testing 3.0e0000 to the 4 power: Testing 4.0e0000 to the 1 power: Testing 4.000000 to the 2 power: Testing 4.000000 to the 3 power: Testing 4.000000 to the 4 power: Press any key to continue