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Basically, we are making all external libraries optional, except for a minimal set of "core" libraries such as `cysignals` and `gmpy2` (see #29865).
(from #30371): See #29705 under the items t…
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Right now, there's `AdditiveSemigroup` and `MultiplicativeSemigroup` which are then combined into `Semiring`. This is all well and good, but unfortunately there's a huge amount of code out there writt…
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| | |
|------------------|-----------------|
|Previous ID | SR-14045 |
|Radar | rdar://17539086 |
|Original Reporter | @…
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I tried to define some effects with impure arities / coarities (i.e., impure parameter and result types) but I failed. I wonder if this is possible in Effekt without using the special syntax for bidir…
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The first draft Table of Contents is now online in the [`_data/toc.yml`](https://github.com/pythoninchemistry/intro_python_chemists/blob/master/_data/toc.yml). However, we want to get more ideas for s…
arm61 updated
4 years ago
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This is an issue reserved for comments on http://blog.higher-order.com/blog/2014/03/19/monoid-morphisms-products-coproducts/
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The master lib of April 28, 2020 has ``NonZero`` for Integer, ℚ and maybe for other special domains.
I suggest to generalize this to ``IsNonzero : Pred Carrier _``
and ``Nonzero = Σ Carri…
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Let A = (a_{ij}) be an m x n (m
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> 原文:[TypeScript: Interfaces vs Types](https://stackoverflow.com/questions/37233735/typescript-interfaces-vs-types)
# 1. 对象(Objects) / 方法(Functions)
二者均可被用来声明`对象`和`方法`的签名,但语法不同。
## 接口
```t…
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``` scala
val v = DenseVector(1d, 2d, 3d)
val filteredV = v(v :> 2d) //works fine
val d = DenseMatrix(1d,2d,3d)
val filteredD = d(d(::,0) :>2d,::) //compilation error
```
The use case here is to fil…