Efofex FX Graph 6.001.0 + Portable | 26.2/54.5 Mb
Most graphing packages offer powerful features but they are difficult to learn, difficult to teach and difficult to use. Many schools spend more time teaching students how to use the program rather than actually using it. FX Graph is different - it is dead simple. So simple that secondary students will be using it to solve problems within minutes of first seeing it.