KnowraChange of variablesLinked fromLinked fromThe 12 pages that link to Change of variables, each with the reason it gives.All 12Related 10Narrower topic 2Gaussian integralNarrower topic: The polar-coordinate proof depends on transforming both the domain and area element.Trigonometric substitutionNarrower topic: Trigonometric substitution is a specialized change of variables with an identity-guided choice.