implicit functions & animation

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implicit functions & animation

Post  Michel S on Wed Feb 18, 2009 1:18 pm

Is someone at Runiter thinking about a way to (1) make graphs of implicit functions in Graphing Calculator and (2) use one or more slider values to make animations of graphs? I would be more than happy to buy if these resources were available.

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Re: implicit functions & animation

Post  runiter on Fri Feb 20, 2009 1:29 pm

Yes Michel, we are planning to add support for both implicit functions and slider & timer based animations.
We're hoping to have them available within the next two releases (v3.1) Smile
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implicit functions and animation

Post  Michel S on Fri Feb 20, 2009 2:20 pm

Thanks for the reply. In the meantime, why not think about graphing 2D and 3D inequalities?

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Re: implicit functions & animation

Post  runiter on Sat Feb 21, 2009 4:30 am

Thank you. The inequalities is something else that we've been considering. Although personally I don't see the needs since all it is, is highlighting under or above the curve. I did however receive several requests for it so it's something that hopefully I will add soon. Meanwhile feel free to post your justifications for why inequalities is important (i will give its implementation a higher priority if I'm convinced that this is a crucial feature for many).
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implicit functions and animation

Post  Michel S on Tue Mar 10, 2009 2:43 pm

Hi there. Can you please explain "highlighting under or above the curve" (and how it is done)? Even if this means what I think it does, I think it would work only for inequalities of the 'y<f(x)" type; what I have in mind are things like "f(x,y)<0" in the plane, and likewise in 3d. I also think about inequalities in polar coordinates. Anyway, aesthetics alone should be enough to justify including graphical representation of inequalities (just and opinion).

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Re: implicit functions & animation

Post  runiter on Wed Mar 11, 2009 10:03 am

Similarly for f(x,y)<0 I can imagine that every polygon will be stretched down to the extreme lower part of the graph. In polar coordinates inequalities aren't that simple and hence it may be a necessary feature. Overall you may be right, it makes a aesthetics visual feature and I will consider adding it in the next version (v3.1).

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