X-Nico

unusual facts about Böttcher's equation


Lucjan Böttcher

His name is attached to Böttcher theorem, in which he introduced Böttcher's equation and solved it under certain assumptions.


Abel's identity

It is especially useful for equations such as Bessel's equation where the solutions do not have a simple analytical form, because in such cases the Wronskian is difficult to compute directly.

Bloch wave

Other much studied periodic one-dimensional equations are the Kronig–Penney model and Mathieu's equation.

Böttcher America

Böttcher is the OEM roller supplier to the major sheet-fed press manufacturers including Heidelberg, MAN Roland, KBA, Komori and Mitsubishi.

Dante's Equation

Calder Farris-- Lieutenant in the United States Army and agent for the United States Department of Defense, a violently patriotic sociopath investigating new weapons technology from non-mainstream scientific sources.

Becomes semi-divine Lord of the sentient but violent and cannibalistic denizens of the adjacent-universe, heavy-gravity planet called Fiori.

Ettore Majorana

Solution of Majorana's equation yields particles that are their own anti-particle, now referred to as Majorana Fermions.

Huber's equation

Very useful in calculating the span width of the bridges like Golden Gate Bridge or Verrazano-Narrows Bridge, their beam cross-sections, etc.

Jane Jensen

Jane Jensen (b. January 28, 1963 in Palmerton, Pennsylvania) is the game designer of the popular and critically acclaimed Gabriel Knight adventure games and author of the novels Judgment Day and Dante's Equation.

Karl Heun

Karl Heun (born 3 April 1859, Wiesbaden; died 10 January 1929, Karlsruhe) was a German mathematician who introduced Heun's equation, Heun functions, and Heun's method.

Lagrange reversion theorem

Lagrange's reversion theorem is used to obtain numerical solutions to Kepler's equation.

Methods of computing square roots

Pell's equation (also known as Brahmagupta equation since he was the first to give a solution to this particular equation) and its variants yield a method for efficiently finding continued fraction convergents of square roots of integers.

Poisson's equation

The Poisson–Boltzmann equation plays a role in the development of the Debye–Hückel theory of dilute electrolyte solutions.

Rosser's equation

In economics, Rosser's equation (named after J. Barkley Rosser, Jr.) calculates future US Social Security Administration Trust Fund balances and payments as the ratio of benefit payments in real terms for a given income level to be received the year after the Trust Fund would be exhausted, to those of the same income level for an initial year.

Schröder's equation

The series expansion around a fixed point and the relevant convergence properties of the solution for the resulting orbit and its analyticity properties are cogently summarized by Szekeres.


see also