List questions from approximation-theory

Published on 26 Mar 2026 - 1:34

204

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A guess on two increasing rational approximations to $\frac{\pi}{4}$

Published on 19 Mar 2024 - 5:11

48

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Compute the correction of a Chebyshev approximation using the Clenshaw summation formula

Published on 26 Mar 2026 - 4:51

110

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Square integrable for universal approximation

Published on 25 Mar 2026 - 20:51

161

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Proving Density for Function Approximation with Hidden Layer Perceptron

Published on 27 Mar 2026 - 0:01

115

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Demonstrating Density Using the Stone-Weierstrass Theorem

Published on 25 Mar 2026 - 20:52

25

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Conditions for Existence of the Solution of an Infinite System of Linear Equations Represented by Block Matrices

Published on 25 Mar 2026 - 7:44

32

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$f$ smooth non-analytic, $f(0) = 0$. Is $f(x)/x$ smooth at $0$?

Published on 30 Mar 2024 - 20:11

265

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Using Galerkin's method to find an approximate solution

Published on 07 Jan 2015 - 12:03

18.5k

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Atan2 Faster Approximation

Published on 10 Jan 2015 - 3:44

92

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Lower Bound for Bernstein Approximation

Published on 15 Jan 2015 - 11:01

93

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Is the Taylor Expansion a good approximation

Published on 25 Mar 2026 - 18:14

1.3k

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Is there a standard way to obtain an approximation piecewise-linear function for a function

Published on 18 Jan 2015 - 17:21

753

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stone weierstrass approximation theorem for simple functions: does it exist?

Published on 27 Jan 2015 - 17:29

548

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Is there Stone-Weierstrass theorem for piecewise continuous functions

Published on 28 Jan 2015 - 14:28

List Question

Reducing the number of natural cubic spline interpolation points

A guess on two increasing rational approximations to $\frac{\pi}{4}$

Compute the correction of a Chebyshev approximation using the Clenshaw summation formula

Square integrable for universal approximation

Proving Density for Function Approximation with Hidden Layer Perceptron

Demonstrating Density Using the Stone-Weierstrass Theorem

Conditions for Existence of the Solution of an Infinite System of Linear Equations Represented by Block Matrices

$f$ smooth non-analytic, $f(0) = 0$. Is $f(x)/x$ smooth at $0$?

Using Galerkin's method to find an approximate solution

Atan2 Faster Approximation

Lower Bound for Bernstein Approximation

Is the Taylor Expansion a good approximation

Is there a standard way to obtain an approximation piecewise-linear function for a function

stone weierstrass approximation theorem for simple functions: does it exist?

Is there Stone-Weierstrass theorem for piecewise continuous functions

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