e/Elliptic rational functions

Information
has gloss	eng: In mathematics the elliptic rational functions are a sequence of rational functions with real coefficients. Elliptic rational functions are extensively used in the design of elliptic electronic filters. (These functions are sometimes called Chebyshev rational functions, not to be confused with certain other functions of the same name).
lexicalization	eng: elliptic rational functions
instance of	c/Rational functions

Meaning
German
has gloss	deu: Die Rational elliptische Funktionen stellen in der Mathematik eine Reihe von rationalen Funktionen mit reellen Faktoren dar. Sie werden zum Entwurf von Übertragungsfunktionen bei Cauer-Filtern in der elektronischen Signalverarbeitung verwendet.
lexicalization	deu: rational elliptische Funktionen

Media
media:img	Rational Elliptic Function (abs, n=3, x=(0,5)).svg
media:img	Rational Elliptic Function (abs, n=4, x=(0,5)).svg
media:img	Rational Elliptic Functions (n=1,2,3,4, x=--1,1-).svg
media:img	Rational Elliptic Functions (xi varied, x=(-1,1)).svg