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What is the inverse of simply composited elementary functions?

algebra-precalculus analysis closed-form asked Dec 22 '18 at 19:40

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What are the most general methods for solving equations in closed form with Lambert W?

special-functions computer-algebra closed-form-expressions asked Dec 25 '17 at 14:47

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Functions that are easy to antidifferentiate but whose inverses are hard to antidifferentiate

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General formula for $\dfrac{d^n}{dx^n}e^{f(x)}$ vs. integer composition or Stirling Numbers 2nd kind

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Why is it that the Lambert W relation cannot be expressed in terms of elementary functions?

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