Hey guys, my instructions are to create a program that approximates the area using Simpson's Rule. I set it up the way my book shows, however it is giving me the following error message:

'function' cannot convert from 'double *' to 'double'

and

a warning that says: different types for formal and actual parameter 1

What do these mean?

Here is the part of the code that it applies to:

Thanks for the help.Code:double f(double *ptr, double x, int degree) { double sum = 0; int i; for(i = 0; i <= degree; i++) { sum = sum + ptr[i] * pow(x,i); return(sum); } } double rectangular(double *ptr, double a, double b, double n,int degree) { double area = 0; double totarea = 0; double k = 0; double width = (b - a) / n; double widthplus = (b - a) / n; double height = 0; for(k = n; k > 0; k--) { for(degree = degree; degree >= 0; degree--) { if(degree != 0) { height = height + (pow(ptr[degree],degree)); } else { height = height + (ptr[degree]); } } area = height * width; totarea = totarea + area; widthplus = widthplus + width; } return(totarea); } double simpsons(double *ptr, double a, double b, double n, int degree) { double answer = 0; double h; double x; int i; h = (b - a) / n; answer = f(ptr,a,degree); for(i = 1; i <= n; i++) { x = a + i*h; answer = answer + 4 * f(ptr,x - (h/2),degree) + 2 * f(ptr,x,degree); } answer = answer - f(ptr,b,degree); return(h*answer/6); }