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Tag: logarithmic integral

Special functions (integrals)

U-substitution, integration by parts and trigonometric substitution are the most used techniques for integration. When nothing is going to work in the case of a certain function, we’ll say that that function doesn’t have an elementary antiderivative, which means there is no function whose derivative gives the function we want to integrate. This is why special functions have been invented. Although this looks innocent, you’ve got to believe me when I say that no matter what you do, you will never solve this. Since the antiderivative is a function we… Read more Special functions (integrals)