Abstract
We can define polymorphic methods using type variables . Polymorphic functions are those that can be applied to data of different types. Polymorphism is different from overloading that corresponds to have different functions with different types but with the same name. For example, addition + in Real and Complex are not polymorphic because we have two different functions with different implementations.
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We will see fold and aggregate in Chap. 8.
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Torra, V. (2016). Types and Classes Revisited: Polymorphism. In: Scala: From a Functional Programming Perspective. Lecture Notes in Computer Science(), vol 9980. Springer, Cham. https://doi.org/10.1007/978-3-319-46481-7_5
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DOI: https://doi.org/10.1007/978-3-319-46481-7_5
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