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*Issue migrated from trac ticket # 2886*
**component:** Algorithms.DataAnalysis | **priority:** medium
#### 2018-01-30 16:48:06: @LukasCamera created the issue
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> As a first step in determinist…
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As part of my contributions to OrganicMaps under this year's "Alternate Routes" GSoC project, I was tasked with working on some profiling of the routing routines, both in terms of compute performance …
Tmpod updated
3 months ago
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```
These are simple trig identities:
>>> theta=symbols('theta')
>>> k=1
>>> simplify(cos(theta)**k + cos(theta+2*pi/3)**k + cos(theta+4*pi/3)**k)
0
# hurray
>>> k=2
>>> simplify(cos(theta)**k + cos…
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I'm exploring the following procedure in this Github and have implemented it in the code file pow_gpu.cpp. It's hopefully a demonstration of how to make it difficult to improve the efficiency of a GP…
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when copying the original code
an important piece of code was lost in the procedure
`int32_t A4950_move(int32_t stepAngle, uint32_t mA)`
in file A4950.c
```
//scale sine result by current(mA)…
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We currently provide cubic and quintic hermite spline path backends, but users can't easily create constant or linear curvature paths with them. This would have been useful for the Infinite Recharge A…
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### Related problem
It would be useful to have some operations that treat lists of numbers as vectors (in the "vector space" sense) and compute dot products, cosines and sines between them. Assumin…
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Your implementation is kinda inefficient.
I have a few suggestions to improve it.
I know it might not be an issue, if one needs to calculate just a single line or maybe a few.
But if one want to ca…
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One slightly glitchy thing is that no matter what the settings are for the leap tool, you still get shot high/far if you look anywhere above the horizon. Because of this, I would not be able to use it…
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### Problem Description
Skrub currently encodes some features in the datetime encoder, but there are a few that feel missing.
- Seasonal patterns during the year
- Seasonal patterns during the…