Using pow();

[pkiskool]

Hey,

I'm trying to evaluate a value using power function.

double *pmech, *vf;
int nodes, i, j;
float capA = 0.0209, capB = 0.219;
pmech = dvector (1, nodes);

for (i=1; i<=nodes; i++) {
vf[i] = capA * pow(pmech[i],capB);
}

I'm basically trying to enter values into an array called 'vf'.
The expression being entered in is capA*pmech^capB.
(pmech here is an array as well)
But there is something wrong with 'pow' function here it seems.
I guess it doesn't like an array as a parameter.

Not sure what to do!

Thanks!

[mcleano]

What are you errors? You haven't allocated memory for 'vf'.

There is also no situation where pow() expects and double base and float exponent.

[pkiskool]

Sorry, forgot to mention the error.

Error C2666: 'pow': 6 overloads have similar conversions

I actually do allocate the memory for vf, just forget to write it up there.

vf = dvector (1, nodes);

so you are saying pow should have either float or double, not both?

[pkiskool]

Thanks, I changed the capA and capB to double, and it works now.
Thank you.