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matlab syms 在 [討論] syms 之後代值問題- 看板MATLAB - 批踢踢實業坊 的推薦與評價


作者ntust661 (一千個傷心的理由)
看板MATLAB
標題[討論] syms 之後代值問題
時間Wed Mar 7 22:05:38 2012




請問使用 sysm 之後運算出來的新的方程式


我要如何帶入我的已知數呢?


EX:


syms x y


f1 = x^2 + y^2 + 1

f2 = x^2 - y^2 + 5


J = [ diff(f1,x) , diff(f1,y) ; diff(f2,x) , diff(f2,y) ]


我下面如果直接打

x = 5

y = 6


J 就會Error


請問版上的大大們


我哪裡做錯了呢??


--

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◆ From: 61.231.50.95
→ ejialan:subs(J) 03/07 22:12
→ ntust661:請問加在哪裡呢? 03/07 23:56
→ domo2:subs((你原先的東西),(x,y),(5,6)) 03/08 00:51






... <看更多>

matlab syms 在 octsympy/syms.m at master - GitHub 的推薦與評價

Called without arguments, @code{syms} displays a list of. %% all symbolic functions defined in the current workspace. %%. %% Caution: On Matlab, you may not ... ... <看更多>

matlab syms 在 Linear System With Symbolic And Numerical Constants - Math ... 的推薦與評價

I used this code: syms f1 u2 u3 u4 f5 s=solve(0*0+0*u2+0*u3-200*u4+200*0.02==f5,0*0+0*u2-200*u3+400*u4-200*0.02==0,0*0-200*u2+400*u3-200*u4+0*0.02==0 ... ... <看更多>

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