Inequality3 Cost: $15 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Inequality3: This is the third program about inequalities. It is suitable for advanced course in algebra. It discusses solutions of three or more inequalities in two-dimension space. It also includes discussion on characteristics of the unshaded region of xy-plane. Finally it teaches the student how to solve quadratic inequalities in a long step-by-step approach.