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




Re: Symbolic Toolbox: Solution of Trigonometric Equations
Posted:
Jun 15, 2013 2:45 AM


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
"Nasser M. Abbasi" wrote in message <kpg7gf$d77$1@speranza.aioe.org>... > On 6/14/2013 3:37 PM, Dinesh Bhati wrote: > > Hi, > > > > solve((sin(t))^21) > > > > do not return 3*pi/2 but only pi/2.How can I get 3*pi/2 also. > > > > I am interested in all the solutions. > > > > EDU>> evalin(symengine,'solve(sin(t)^21)') > > > matrix([[t]]) in solvelib::VectorImageSet(matrix([[pi/2 + pi*k]]), k, Z_) > > so the answer is pi/2 + pi*k where k in Z (ie. set of integers) > > So let k=1 and you have your other solution. > > Nasser



