code. compile. run. debug. share.
#include <stdio.h>
#include <math.h>
double fak(int n) {
int f = 1;
int i = 0;
do {
i++;
f *= i;
} while(i<n);
printf("fak(%d) = %d\n", n, f);
return f;
}
double func_e() {
double res = 0;
double res_old = 0;
double x, k;
x = 1;
k = 0;
do {
res_old = res;
res += ((pow(x,k)) / fak(k));
k++;
} while(res != res_old);
return res;
}
int main(void) {
//printf("power %f", pow(3,3));
printf("%f", func_e());
//printf("%f", fak(3));
printf("\n");
return 0;
}
Compiling Program...
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