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Apr
21
awarded  Popular Question
Apr
20
awarded  Revival
Apr
20
answered Why my asymptote image is rendered like this?
Mar
30
revised How to make dominoes falling?
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Mar
21
awarded  Popular Question
Mar
11
comment Asymptote: draw surface from data points in 3D
Could you provide a more specific reference for the bad behavior of this algorithm? De Boor did a whole lot of stuff.
Mar
10
awarded  Revival
Mar
10
revised Fractional linear transformations in Asymptote
added 137 characters in body
Mar
10
answered Fractional linear transformations in Asymptote
Mar
7
awarded  Populist
Mar
7
comment Draw a smooth surface
First, in my mind, the key aspect of the question was that it was asking for an implicitly plotted surface. I've thought a lot in the past about how to plot a smooth genus-2 surface, and so far come up blank. Also, because of my training as a theoretical mathematician, I consider these pictures a good deal less smooth than the OP's: in the OP the roughness is an artifact, whereas a union of two tori is intrinsically non-smooth.
Mar
6
comment Draw a smooth surface
If you want a smooth parametric plot (or union thereof), Asymptote can do that at least as well as Sage. But that surface is not smooth--you can see the corners.
Mar
6
comment Draw a smooth surface
@cmhughes: The surface is not parametrized--it's plotted implicitly.
Mar
6
answered Draw a smooth surface
Mar
1
revised Drawing Ellipsoids in Asymptote; Camera too Close
added 1353 characters in body
Mar
1
revised Drawing Ellipsoids in Asymptote; Camera too Close
added 475 characters in body
Feb
28
comment Drawing Ellipsoids in Asymptote; Camera too Close
@Ronny: The second definition should overwrite the first, not be composed with it. In any case, I agree with you that it ought to be possible to define T as you do, and it makes no sense that it is causing an error--especially this particular error.
Feb
28
comment Drawing Ellipsoids in Asymptote; Camera too Close
@Ronny: I assumed that the scale option would not be sufficient for you in general, but it made a useful comparison for the MWE. However, as you will see in my update, I am retracting my original answer--there is something truly bizarre going on here. Somehow the mere fact of computing T as you do is causing the error, regardless of whether the computation is used. And that makes no sense at all.
Feb
28
revised Drawing Ellipsoids in Asymptote; Camera too Close
added 1512 characters in body
Feb
28
answered Drawing Ellipsoids in Asymptote; Camera too Close