最佳平方逼近matlab实现。

gonghai88

以最简单的一对数为例：
x=1/30:1/30:29/30
y=[-0.91959,-0.98206,-0.82352,-0.5105,-0.13809,0.21072,0.48385,0.66247,0.75341,0.77783,0.76048,0.7222,0.67643,0.6293,0.58184,0.533,0.48204,0.42962,0.37751,0.32739,0.27968,0.23309,0.1854,0.13521,0.083638,0.034636,-0.006874,-0.037269,-0.049792;]

想对这对数据进行最佳平方逼近，在书上找到个mini_product的命令，一试发现用不了。请教下用别的命令该如何实现。
谢谢！

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