一个基于ＶＣ编写的波形显示控件的源程序．能显示正弦波，三角波和方波等-a waveform display prepared by the Control of the source. Can show that the sine, square and triangle wave, etc.

vc6.0绘制正弦波，三角波，幅值，频率均可以改变。以及对三角波做dft，并显示算法运行时间。-vc6.0 draw sine, triangle wave, the amplitude and frequency can be changed. And the triangular wave do dft, and display algorithm running time.