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Topic: Symbolic Toolbox: Solution of Trigonometric Equations
Replies: 4   Last Post: Jul 22, 2013 8:00 AM

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 Christopher Creutzig Posts: 323 Registered: 2/24/09
Re: Symbolic Toolbox: Solution of Trigonometric Equations
Posted: Jul 22, 2013 8:00 AM

On 15.06.13 08:45, Dinesh Bhati wrote:
> Can you please help in the following particular case. I want all the minima points. Toolbox is returning only one.I have plotted function 'p'. It has no. of minimas.
>
> syms t10 t11
> p=(cos(t11)*sin(t10) + sin(t10)^3*cos(t11)*+sin(t10)^2 - cos(t11)^2*sin(t10)^2);
> eq1=diff(p,t10);
> eq2=diff(p,t11);
> s=solve(eq1,eq2,'t10','t11')
> s.t10
> s.t11

In MATLAB R2013a, I get 13 solutions.

Christopher

Date Subject Author
6/14/13 Dinesh Bhati
6/14/13 Nasser Abbasi
6/15/13 Dinesh Bhati
6/15/13 Nasser Abbasi
7/22/13 Christopher Creutzig