Subset of recursively enumerable language as explained at: difference between recursive language and recursively enumerable language.
Ciro Santilli considered it before he stopped using file managers altogether, it is not bad.
Exponential function differential equation by
Ciro Santilli 35 Updated 2025-03-28 +Created 1970-01-01
TODO find better name for it, "linear homogenous differential equation of degree one" almost fully constrainst it except for the exponent constant and initial value.
Ciro Santilli learned this expression from Angry Video Game Nerd.
Sometimes Ciro Santilli says half jokingly that user interface does not matter.
This software circa 2010-2020 makes that joke not be funny.
How can a UI feel so clunky!
The most aggravating thing is that it is not immediately obvious why it feels so bad.
Dual vectors are the members of a dual space.
In the context of tensors , we use raised indices to refer to members of the dual basis vs the underlying basis:The dual basis vectors are defined to "pick the corresponding coordinate" out of elements of V. E.g.:By expanding into the basis, we can put this more succinctly with the Kronecker delta as:
Note that in Einstein notation, the components of a dual vector have lower indices. This works well with the upper case indices of the dual vectors, allowing us to write a dual vector as:
In the context of quantum mechanics, the bra notation is also used for dual vectors.
Ways in which it can happen:
Graph of life
. Source. horizontal gene transfer transforms the tree of life into the graph of life! Fuck my life. There are unlisted articles, also show them or only show them.