C :: Integration Using Pointer

So I was playing around with trying to do an integral using pointers. I've written what I'm trying to do already using arrays

Code:
#include <stdio.h>
#include <math.h>
#define RANGE 500 // Final temp = T0 + RANGE
int main() {
int i, j, h = 1, T0 = 300;
float k300 = 148, alpha = -1.25;

[Code] ...

Which works just fine. Instead I want to try to go through it using pointers. Is there a good way to go through the first loop above, something like?

Code:
#include <stdio.h>
#include <math.h>
#define N 501 // Final temp = T0 + N
int main() {

int T0 = 300;
float k300 = 148, alpha = -1.25;

[Code] ....