Calc 3D 

Calc3D is a calculator for vectors, matrices, complex numbers, quaternions and coordinates. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated. (5 languages)
vectors matrix complex intersection addition division subtraction spatproduct skalarproduct crossprodukt vectorproduct length angle

Calc 3D Pro 

Calculator for statistic, function plottting, vectors, matrices, complex numbers, coordinates, intersections. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.
statistic fit vectors matrix complex intersection polygon division subtraction spat product scalar product cross prod