此为比较奇异值分解的算法，QR分解法和分而治之法，并带入了Lapack的选择控制的接口程序，方便在matlab下实用这两种不同的算法进行比较-the algorithm about the decomposition of singular value of matrix comparing the different algorithm in the lapack QR and divide and conquer (DAC)

在dac 上显示一个波图，刚刚输出的时候是sine 的图 开动按钮后发出不同的图像-Write a C program that creates a waveform generator. It should start by outputting a sine wave to DAC0. Each time SW1 is pressed then released, the wave form should change, first to a triangle wave, then

Model DAC in Matlab. The structure of the sigma-delta modulator. Implemented in the chip.