Waveform is a small application that draws and exports function graphs (such as y = sin(x)) especially for use with audio programs as waveforms. It is limited to only one graph because it is not designed for other uses, and it only outputs .wav files. It can display graphs on the screen, render .wav waveform files from them, and preview them through Open Sound System. The application has been tested on Linux (CRUX 1.3) and Windows 98SE, but the sound output only works in Linux (OSS). (Source: http://freecode.com/)