int isNAN(float vec1_W, float vec1_X, float vec1_Y, float vec1_Z)
Check whether this vector contains valid values.
float dotProduct(float vec1_W, float vec1_X, float vec1_Y, float vec1_Z, float vec2_W, float vec2_X, float vec2_Y, float vec2_Z)
Calculates the dot (scalar) product of this vector with another.