OECalcCartesianCoord

void OECalcCartesianCoord(float* a, float* b, float* c, float* z,
                          float* x)

Given the Cartesian coordinates of the three reference atoms, in the arrays ‘a’, ‘b’ and ‘c’, convert the internal coordinate specified by ‘z’, to a Cartesian coordinate in the buffer pointed to by ‘x’.