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I'm not sure if there is a reason for this, but it appears that M2 multiplies the entries of matrices in the `opposite ring'. This is undetectable for commutative rings, but gives unexpected results …
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I would simply like to define a symbolic function of this signature
f: ℝ^𝑑 → ℝ
and obtain the gradient symbolically. The function does not have any concrete definition. What I am expecting is so…
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I recently found this library and found it to be very useful and wish I knew about it years ago.
Is it possible/easy to implement `aac_congruence` using the machinery defined here?
For example, befo…
aa755 updated
2 months ago
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When the renaming operator is used to change the name of an operation in a theory, the names of the axioms do not reflect that change. For example, the commutativity axiom of semirings has the name co…
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{code}
import h2o
h2o.init()
df = h2o.H2OFrame({"A": [1, 2, 3, 4], "B": [7, 6, 5, 4]})
df + df[1,:]
# A B
# --- ---
# 3 13
# 4 12
# 5 11
# 6 10
df[1,:] + df
# A …
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Context: https://gitter.im/geotrellis/geotrellis?at=5dcd9656c26e8923c424ff3a
If one assumes that `union` should be commutative (as is the Set union operator) this test fails:
```scala
UShortCon…
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Feature gate: `#![feature(num_midpoint)]` and `#![feature(const_num_midpoint)]`
This is a tracking issue for the midpoint function to `{u,i}{8,16,32,64,128,size}`, `NonZeroU{8,16,32,64,size}` and `…
Urgau updated
1 month ago
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Mathematica defines the _Orderless_ attribute on nodes. This is quite a limitation, you need different nodes for ordinary multiplication (_Times_) and for matrix multiplication (_Dot_).
SymPy defines…
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The algebraic operators `dot`, `cross`, `inner` and `outer` do not handle correctly `Matrix` objects from sympy.
We consider the following
```python
from sympde.topology import VectorFunctionS…
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I'd love if we could do this:
```scala
import stainless.lang._
import stainless.annotation._
object LawForall {
trait Forall[T] {
def apply(x: T): Boolean
@law
def holdsFor(…