Infinity
As we move to new digital era, we tend to rely on tireless machines in almost every aspect of our everyday life. Computer is an infinite source of creativeness and a perfect tool for any digitized activity, from collecting photos to modeling complex systems. ... Infinity is an innovative non-linear math application that allows you use complex mathematical expressions within equations to describe the problem which requires solution. ... Thanks to advanced computing technology and optimized processor usage resource-hungry calculations take less time and run smoothly.
http://www.mathrevolt.com/files/infinity.exe - 2Mb - Download - Screenshot

EMMentor Algebra short
Interactive multilingual mathematics software for training problem-solving skills offers 70439 algebraic problems, a variety of appropriate techniques to solve problems and a unique system of performance analysis with methodical feedback. Included are linear, quadratic, biquadratic, reciprocal,... A translation option offers a way to learn math lexicon in a foreign language. ... Dozens of tests are ready for learners to review and reinforce their math skills. ... The software allows students at all skill levels to practice at their own pace, learn from both errors and solutions, review...
http://www.emteachline.com/light/emmentorlight.exe - 5Mb - Download - Screenshot