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Nonstandard calculus

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In mathematics, nonstandard calculus is the modern application of infinitesimals, in the sense of nonstandard analysis, to infinitesimal calculus. It provides a rigorous justification for some arguments in calculus that were previously considered merely heuristic.

Nonstandard calculus - Wikipedia Jump to content From Wikipedia, the free encyclopedia Modern application of infinitesimals In mathematics , nonstandard calculus is the modern application of infinitesimals , in the sense of nonstandard analysis , to infinitesimal calculus . It provides a rigorous justification for some arguments in calculus that were previously considered merely heuristic . Non-rigorous calculations with infinitesimals were widely used before Karl Weierstrass sought to replace them with the (ε, δ)-definition of limit starting in the 1870s. For almost one hundred years thereaft

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