Snippets (math and computing)

Things to use or delete. See Snippets.

Fuzzing

Fuzzing or fuzz testing is an automated software testing technique that involves providing invalid, unexpected, or random data as inputs to a computer program.

https://en.wikipedia.org/wiki/Fuzzing

Sturmian word

In mathematics, a Sturmian word (Sturmian sequence or billiard sequence), named after Jacques Charles François Sturm, is a certain kind of infinitely long sequence of characters. Such a sequence can be generated by considering a game of English billiards on a square table. The struck ball will successively hit the vertical and horizontal edges labelled 0 and 1 generating a sequence of letters. This sequence is a Sturmian word.

Bathtub curve

The bathtub curve is widely used in reliability engineering. It describes a particular form of the hazard function which comprises three parts:

• The first part is a decreasing failure rate, known as early failures.
• The second part is a constant failure rate, known as random failures.
• The third part is an increasing failure rate, known as wear-out failures.

The name is derived from the cross-sectional shape of a bathtub: steep sides and a flat bottom.

https://en.wikipedia.org/wiki/Bathtub_curve

Slack variable

Slack variable: In an optimization problem, a slack variable is a variable that is added to an inequality constraint to transform it into an equality. Introducing a slack variable replaces an inequality constraint with an equality constraint and a non-negativity constraint on the slack variable.

Impossible Puzzle

• https://en.wikipedia.org/wiki/Sum_and_Product_Puzzle

Sorting algorithms

• https://www.youtube.com/watch?v=kPRA0W1kECg

"The Talk" (quantum computing)

• https://www.smbc-comics.com/comic/the-talk-3