Euler substitution is a method for evaluating integrals of the form
where is a rational function of and . In such cases, the integrand can be changed to a rational function by using the substitutions of Euler.[1]
^N. Piskunov, Diferentsiaal- ja integraalarvutus körgematele tehnilistele öppeasutustele. Viies, taiendatud trukk. Kirjastus Valgus, Tallinn (1965). Note: Euler substitutions can be found in most Russian calculus textbooks.
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