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I recently made a new version of eclib, which will only affect the saturation of points on elliptic curves over Q. The interface for this (in the `saturation()` method for elliptic curves over Q) h…
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I'm updating ApproxFun and this caught me by surprise:
``` julia
abstract Foo
julia> (f::Foo)(x)=x
ERROR: cannot add methods to an abstract type
in eval(::Module, ::Any) at ./boot.jl:267
```
Is thi…
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I understand this has been discussed and experimented with before and people found that it was really annoying when `+` didn't automatically broadcast. But @StefanKarpinski suggested I opened an issu…
dalum updated
2 years ago
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I would like to have this. It is inconvenient.
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I observe some numerical difficulties in constrained polynomial optimization with small problems; and before scaling them up, I wanted to ask whether you'd expect such a behavior and the interpolant-b…
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Investigate and fix the memory errors the program is experiencing in generating random SL_2(Z) matrices.
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Consider
```
μ = Sym("μ")
A = Sym[
-μ 1 0 0 0 0 0 0 0 0;
0 -2μ 1 1 0 0 0 0 0 0;
0 0 -μ 0 1 0 0 0 0 0;
0 0 0 -2μ 1 0 1 0 0 0;
0 0 0 0 -2μ 1 0 1 0 0;
0 0 0 0 0 -μ 0 0 1 …
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Hi @jkcshea do you understand what's going on in this example?
I'm not so sure I understand what adding `0 +` does in the context of splines.
(I know it removes the intercept, but not clear on what …
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Right now:
```
gap> GammaLMeetSU(9, 8, 3);; time;
3396
```
That's over three seconds to compute the generators. That's really slow, by 2-3 orders of magnitude.
A core problems seems to be the …
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This will add classes dealing with quivers, quiver algebras, representations of quivers, elements of these representations, homomorphisms between these representations, and spaces of homomorphisms b…