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fDesc[0] = "SineWaves is used for Mathematics and Physics lessons in Secondary Schools to demonstrate the harmonic make up of audio sounds. Students are able to view and hear constructed formulae. <br /> Four waveforms may be displayed at once and each waveform formula may have up to 30 terms. Thus simple waveforms like y = A sin x maybe be compared to more complex waveforms like y = A sin x C sin 3x E sin 5x.<br /> This program can also play any one of the displayed waveforms, so that students can hear the difference that various harmonics of various amplitudes have on the sound of the waveform. This feature means that the x term actually has the form (2 pi f)x where f is a frequency between 20 and 10,000 Hz.";

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