No line on my graph

5 次查看（过去 30 天）
Sakusan Puwanendran
回答： Star Strider 2017-11-5
I tried plotting modz as a function of log10w but there is no line on my graph w=0.001:1000 modz=sqrt((w.^0.5 + 20*cos(pi/8)*w.^0.25 + 100)/(1+ 2*cos(pi/8)*w.^0.25 +w.^0.5)) W=log10(w) figure(3) plot(W,modz)

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回答（1 个）

Star Strider
Star Strider 2017-11-5
You need to vectorise (do element-wise calculations) in your ‘modz’ calculation. This means substituting ‘./’ for /:
modz=sqrt((w.^0.5 + 20*cos(pi/8)*w.^0.25 + 100)./(1+ 2*cos(pi/8)*w.^0.25 +w.^0.5));
↑
That will work.

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