1)   STFMath 2.1
Draw Cartesian, Parametric and Polar functions, special functions or Integral (with Average preview), analyze functions, calculate and draw integral, derivative, average, evaluate any function. Use complex and geometry calculator.
graph, derivative, cartesian, polar, parametric, function, analyze, integral, complex, evaluate,

 2)   CalcCoord 0.0.1
transforms cartesian, spherical and cylindrical coordinates (5 languages)
cartesian, spherical, coordinates, cylindrical, transformation,

 3)   Calc 3D 0.0.31
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, quaternion, intersection, addition, division, subtraction, spatproduct, skalarproduct,

 4)   MultyGraphiX 1.0
MultyGraphix designed to plot any mathematical 2D and 3D, explicit and parametric functions. It's allow to plot function in the Cartesian, polar, cylindrical and spherical systems of coordinates. It's useful for educators, and students.
mathematic, formula, function, functions, diagram, 2D, 3D, plot, plotting, drawing,