Thread: Maths function

en ... .... .....
i think there is not ........

No, there's no built-in function for this.

If you stretch it, you could use valarrays:

Code:

valarray<double> v  =  ... (x,y,z)
valarray<double> u  = ... (x1,x2,x3) 

//Distance vector between points
valarray v0 = v-u;
//Raise each element to the power of two, add the elements
//and take the square root from the result
double distance = sqrt( pow(v0,2).sum() );

Even though abs() is overloaded for valarraysy, one cannot do:

Code:

double distance = abs(v0); //abs returns a valarray