Paraboloid not displaying

StevePhelps shared this problem 6 years ago
Answered

OK...this is the second file I have tried and the Paraboloid does not show up


https://www.geogebra.org/student/m225147


But a more complicated surface does.


https://www.geogebra.org/st...

Comments (3)

photo
1

Hi,


This works

    Surface[v cos(u), v sin(u), v², u, 0, 2pi, v, 0, 3]

but apparently

    f(x,y)=x^2+y^2

is not working.

photo
1

Hi,


Thanks for the report. We'll check that.


Cheers,

Mathieu

photo
1

Good workaround!


Hi,


This works

    Surface[v cos(u), v sin(u), v², u, 0, 2pi, v, 0, 3]

but apparently

    f(x,y)=x^2+y^2

is not working.

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