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如何求一个函数的极大值点和对应的横坐标啊！！！！。
wn=3.4338;zeta=0.14037;wd=wn*sqrt(1-zeta^2);X=0.4550; t=0:0.01:20; y=X.*exp(-zeta.*wn.*t).*sin(wd.*t); 怎么求这个函数的所有极大值和横坐标啊。 ...
3 years ago | 1 answer | 0
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如何把两条曲线拟合成一条曲线？。
情况是这样的：实验测出了两组数据，分别是x0、y0和x1、y1。（因为x0、x1的起始值和增长幅度都不相同，所以无法直接在第一次拟合前直接求y的平均值。）由x0、y0通过曲线拟合可以拟合出一个近似曲线p0，同理由x1、y1也可以拟合出一个近似曲线p1，现在...
3 years ago | 1 answer | 0
