Needing Help in something simple



What is wrong?

taca:parametric_surface(x,y(6.5*cos(t)),z(6.5*sin(t)),x,-2,2,t,0,2*%pi);

wxdraw3d(surface_hide = true,color = blue,axis_3d = false,xtics = false,ytics = false,ztics = false,view = [90,30], taca);


All i want is:


 "x" = x
 "y" = 6.5*cos(t)
 "z" = 6.5*sen(t)

But this keep showing:

;; loading #P"/Users/Marcelo/.maxima/binary/binary-sbcl/share/draw/grcommon.fasl"
;; loading #P"/Users/Marcelo/.maxima/binary/binary-sbcl/share/draw/gnuplot.fasl"
;; loading #P"/Users/Marcelo/.maxima/binary/binary-sbcl/share/draw/vtk.fasl"
;; loading #P"/Users/Marcelo/.maxima/binary/binary-sbcl/share/draw/picture.fasl"
Maxima encountered a Lisp error:
 arithmetic error FLOATING-POINT-OVERFLOW signalled
Automatically continuing.
To enable the Lisp debugger set *debugger-hook* to nil.