MaplePrimes Questions

Hi, I am working on an activity about conic sections, but I have a small issue with the display of the ellipse and the circle. My outlines are not complete. Any ideas on how to identify my error? Thanks  SectionsConiquesTest.mw

Hi to every one. I have attached a maple for eigenvalues. Please see and tell be solution of problem.

Thanks for time.

Eigen_Values.mw

Hi, here is my question.

test:=v^3;

plot3d(test,u=0..1-v, v=0..1);

How can I  transform this plot in the right triangle into an equilateral triangle? 

So that the three edges of the plot are the same length.

I wanna, squish it, or shear?

any tools i can use? Or can I do it using some tricks to change the function?