Free calculator for vectors, matrices, complex numbers and quaternions - Windows Shareware $11. Calc 3D calculates 3-dimensional vectors, matrices, complex numbers and quaternions. It's able to do the standard calculations: Addition, subtraction, spatproduct, skalarproduct, unit vector, multiplication of two vektors or matrices, length of a vector, crossprodukt (vectorproduct), angle between two vectors, multiplication of a number with a vector or a matrix For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.

Cartesian coordinates, spherical coordinates und cylindrical coordinates can be transformed into each other. The programm is in five languages (german, english, spanish, italian, portugese) available. You can choose them in the programm.