I am trying to write a program to approximate pi. It basically takes random points between 0.00 and 1.00 and compares them to the bound of a circle, and the ratio of points inside the circle to total points should approach pi (A very quick explanation, the specification goes in depth much more). However, I am getting the following error when compiling with gcc:
Undefined first referenced symbol in file pow /var/tmp//cc6gSbfE.o ld: fatal: symbol referencing errors. No output written to a.out collect2: ld returned 1 exit status What is happening with this? I've never seen this error before, and I don't know why it's coming up. Here is my code (though I haven't fully tested it since I can't get past the error):
#include #include #include int main(void) < float x, y; float coordSquared; float coordRoot; float ratio; int n; int count; int i; printf("Enter number of points: "); scanf("%d", &n); srand(time(0)); for (i = 0; i < n; i++) < x = rand(); y = rand(); coordSquared = pow(x, 2) + pow(y, 2); coordRoot = pow(coordSquared, 0.5); if ((x < coordRoot) && (y < coordRoot)) < count++; >> ratio = count / n; ratio = ratio * 4; printf("Pi is approximately %f", ratio); return 0; >