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I ask SymPy to evaluate the following integral:
$$
\int_{-1}^{1} P_l(x) dx,
$$
where $P_l$ is the Legendre polynomial of order $l$. The integral should yield 2 for $l=0$ and 0 for $l>0$. However, Sy…
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@dlfivefifty
The performance of Legendre's `plan_transform` sometimes seems to degrade once the number of grid points becomes large. In particular I noticed that:
1) Synthesis `\` is slower than …
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In relatively recent work (https://github.com/scipy/scipy/pull/20539), @izaid developed a more consistent API for the Legendre functions, and developed tools for evaluating the recurrences used in the…
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### What are you trying to do?
Use the package without copyright risk
### What did you do?
Used github.com/gonum/gonum(91a06ac64c4b32c929427846d4d1d3b8202ad7b1)
### What did you expect t…
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`qnwlege` called in `odu.md` and `kalman.md`.
Replace with FastGaussQuadrature
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**Link:** https://wg21.link/p0226r1
Subtasks:
- [ ] [sf.cmath.assoc.laguerre](https://wg21.link/sf.cmath.assoc.laguerre) `std::assoc_laguerre`
- [ ] [sf.cmath.assoc.legendre](https://wg21.link/sf…
cjdb updated
2 months ago
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In the case where `u' = f(t)dt`, you can simply solve it via an integral, `u = Int(f(t)dt)`.
In the case where you have a system of equations `[u1',u2'] = [f1(u1), f2(u1)]`, you can remove `u2` fr…
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Derivative and filter operators are implemented
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Hi,
1. The weight formula (https://pomax.github.io/bezierinfo/legendre-gauss.html) has a little typo, it says: `[P'_n(x))]^2` should be `[P'_n(x)]^2` I guess.
2. The Mathematica script has some we…
yzrmn updated
4 years ago
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Using `thor.scatter.sph_hrm_coefficients()` with `q_magnitudes = (1.0, 2.0, 3.0)` and `num_coefficients = 32` I get this warning:
```
/usr/local/lib/python2.7/dist-packages/thor/math2.py:375: Runtime…