本实验实现了裁剪的生成技术，先画一个矩形，然后画一条直线，在矩形内的将被裁剪．-the experimental realization of the formation of cutting technology, a rectangular paintings and then painting a straight line. in the rectangle will be cut.

关于快速傅里叶变换的C语言编程，包括长度为1的傅里叶变换, 位置交换过程-wskj jk jkd fjdkf lajflajf kld

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