1)   Advanced Grapher 2.11 Graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions and inequalities. Calculus features: regression analysis, derivatives, tangents, normals and more. 2)   Robot4 0.67 Robot4 (tm) is a Robotic Arm Movement program where the arm is moved from given position to desired position (an Inverse Problem). The program finds the angles necessary for the desired position. A Fortran Calculus demo application. 3)   Abacus Math Writer 4.0 MathWriter is a java stand-alone program that allows for the production of, Mathematical, Scientific and Engineering equations and formulae.Schoolteachers and Lecturers will find MathWriter useful for producing notes, reports and test papers.