Does anyone know of a manuscript that discusses "Weierstrass substitution"(also called tangent half angle substitution) in Risch algorithm? There is one paper that discusses the Weierstrass substitution in symbolic integration but "not" specifically in terms of Risch algorithm, this one http://www.apmaths.uwo.ca/~djeffrey/Offprints/toms1994.ps
2026-03-26 02:53:10.1774493590
Manuscript discussing Weierstrass substitution and Risch algorithm
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