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Question
带参数的数值积分，帮忙看下哪错了。
求y=kx在【1,5】上的积分： k=linspace(0,5); >> for i=1:length(k) kk=k(i); fun=inline('kk.*x','x'); y(i)=quadl(fu...
3 years ago | 1 answer | 0
1
answerQuestion
求一个最小值，用循环求比较慢。
1+1/2+1/3+......+1/(n-1)+1/n>30 式子如上，求使上面式子成立的n的最小值，用循环求比较慢，用fminsearch或者fminbnd怎么求呢？
3 years ago | 0 answers | 0
