Integral functions in C++

[Rachael]

I am having trouble locating integral functions that I can use in C++. I have two equations with long integrals in them for calculating the thrust and torque of a propeller blade. I just need to know the math function for an integral. i.e. for squar roots : sqrt()

[tyreld]

The "sqrt()" function can be found in the <math.h> header. You will probably also need to link against the math library when using the math header (ie "-lm" must be passed to the compiler).

Here are the function signatures for the sqrt functions provided by math.h.

              double      sqrt(double);
              float       sqrtf(float);
              long double sqrtl(long double);
 

[Jai Vrat Singh]

Standard C does not provide any intergral functions like Integral of x*x from limits 2 to x=4 and give you answer like ( 1/3) ( 4*4 - 2*2)

You can find MATLAB and othe available libraries for this.

Moreover you can write your own by using infinitesimal summation methods..

Cygwin alo provides similar utilities.

[D_C]

What are the integrals you need to calculate? Perhaps it can be done generically, then you could just plug in the appropriate constants/values.