excellent,

thank you very much,

Robert Israel

Thanks for Robert Israel and Kamel,

but the problem is still unsolved.

for the equation tan(x)-y,

the command below can see more detail near x=Pi/2,

plots[implicitplot](subs(x = (1/100)*x, tan(x)-y), x = 154 .. 160, y = -200 .. 200, gridrefine = 3, signchange = false, grid = [200, 200]),

but for my equation,

plots[implicitplot](subs(x = (1/100)*x, tan(x*sqrt(cp^2/3220^2-1))*(cp^2/3220^2-2)^2+4*tan(x*sqrt(cp^2/6450^2-1))*sqrt((cp^2/3220^2-1)*(cp^2/6450^2-1)) = 0), x = 0 .. 400, cp = 0 .. 4000, gridrefine = 7, signchange = false)

the command above doesn't work,

so, is there any better method to get the detail for my equation?

help, thank you in advance.

Thanks for Robert Israel and Kamel,

but the problem is still unsolved.

for the equation tan(x)-y,

the command below can see more detail near x=Pi/2,

plots[implicitplot](subs(x = (1/100)*x, tan(x)-y), x = 154 .. 160, y = -200 .. 200, gridrefine = 3, signchange = false, grid = [200, 200]),

but for my equation,

plots[implicitplot](subs(x = (1/100)*x, tan(x*sqrt(cp^2/3220^2-1))*(cp^2/3220^2-2)^2+4*tan(x*sqrt(cp^2/6450^2-1))*sqrt((cp^2/3220^2-1)*(cp^2/6450^2-1)) = 0), x = 0 .. 400, cp = 0 .. 4000, gridrefine = 7, signchange = false)

the command above doesn't work,

so, is there any better method to get the detail for my equation?

help, thank you in advance.

thank you very much for your reply,hirnyk

thank you very much for your reply,hirnyk

amazing,

but,suddenly,I have a good idea,

why not developing maplesim with 3D modeling ?

I think that would be more similar with the real world and would be easier to master it.