How to plot two complicated functions
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I have two complicated functions y^7-y^3-sin(x)+a*sqrt(x)=0 and e^(-x)+b*cos(y)-c*x^2+y^2=0 where a, b,c are given by 4, 3, 2. I have to plot them in the same set of axis. I can not write then as the explicit functions y=f(x) and y=g(x) (or x=F(y) and x=G(y)). Therefore, it is very difficult to plot them. I would like to request you to give me any direction to plot the equations.
Thanking you.
Pallav
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Respuesta aceptada
Azzi Abdelmalek
el 27 de Dic. de 2012
Editada: Azzi Abdelmalek
el 27 de Dic. de 2012
You can use roots function to find the solutions of your equations, for example: for x=1
v=[1 0 0 0 -1 0 sin(x)+2*sqrt(x)]
y=roots(v)
For the second equation you can use fsolve
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Azzi Abdelmalek
el 27 de Dic. de 2012
a=1;
yourfun=@(x,y) y^7-y^3-sin(x)+a*sqrt(x)
ezplot(yourfun)
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