Is there any Word in the Math Vocabulary that starts with J?

Here’s a more exhaustive list of math terms starting with “J”:

1. Jacobian – A matrix used in calculus and differential equations, representing the derivative of a vector-valued function.
2. Joint Probability – The probability of two or more events happening together.
3. Jordan Form – A canonical form of a matrix in linear algebra.
4. Joule – A unit of energy in physics, though not strictly a math term, it is related to mathematical calculations in physics.
5. Jacobi Method – An iterative method for solving systems of linear equations.
6. JavaScript – A programming language often used in mathematical software and applications, although primarily a programming term.
7. Jordan Curve Theorem – A theorem in topology concerning the properties of curves.