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Add `Vector.map(f)` that returns a new vector transformed with `f`
**Reporter**: [Brian Hulette](https://issues.apache.org/jira/browse/ARROW-2765) / @TheNeuralBit
**Note**: *This issue was originall…
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Dear author, thank you so much for making your source code public, which has benefited me greatly. However, I still have some confusion. How do you define the sampling range of rotation vectors and tr…
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In the subject, it says: `3d normalized orientation vector. In range [-1,1] for each x,y,z axis: 0.0,0.0,1.0`.
But if a vector has not a length of 1, it's not normalized, so I put a condition in th…
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Rust [has it](https://doc.rust-lang.org/nightly/std/iter/struct.FilterMap.html)
It avoids code like this
```cpp
.map([&files_in_directory](const btu::Path &path) -> std::optional {
…
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The current map to rgb is two nested for loops; this can totally be vectorized.
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# Top-View-of-a-Tree
## 入选理由
暂无
## 题目地址
[https://binarysearch.com/problems/Top-View-of-a-Tree](https://binarysearch.com/problems/Top-View-of-a-Tree)
## 前置知识
暂无
## 题目描述
…
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Hello @hatem-darweesh,
I emailed you before, and thank you for your response. I agree that talking with you here might help other people too. Basically, I would like to know if I am correct about h…
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We should add the following connivence function for `calculate_p` where instead of specifying indices in an `ind_to_ind_value_map` we can assume single site ind per vertex and just pass vertices
Simi…
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**Describe the bug**
When adding `@addFeature` to a `ol-source-vector` there should be events for whenever a feature is added to the `ol-source-vector`. Such an event is never thrown. Seems to be t…