Math function help

[Binary0110]

Can someone help me turn this into c++ code. I thought I had it but I keep getting errors. What am I doing wrong? N is an exponent. Payment = Rate * (1 + Rate)N -------------------- * L ((1 + Rate)N – 1) Here is my code: double payment=(mrate*(1+mrate)* exp (n)/((1+mrate)* exp(n)-1))*l; BINARY -- modified at 3:22 Monday 31st October, 2005

[Rage]

Binary0110 wrote:

I keep getting errors

Do you mean compiling errors, or errors in the formula ? ~RaGE();

[Arman S]

Hi, What do mean saying that N is exponent? Do you mean e^N or x^n? Where have declared the rest of variables; mrate, n, l? double mrate = some_initial_value; double l = some_initial_value; double n = some_initial_value; Anyway, if you mean e^N, the code might look like so: double payment = (mrate * (1 + mrate) * exp(n) / ((1 + mrate) * exp(n) - 1)) * l; If you mean x^N: double payment = pow(mrate * (1 + mrate), n) / (pow((1 + mrate), n) - 1) * l; -- ====== Arman

[David Crow]

Binary0110 wrote:

...but I keep getting errors.

Such as?

Binary0110 wrote:

double payment=(mrate*(1+mrate)* exp (n)/((1+mrate)* exp(n)-1))*l;

Make sure the numeric constants are floating point values, like:

double payment=(mrate*(1.0+mrate)* exp (n)/((1.0+mrate)* exp(n)-1.0))*l;

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