List questions from discrete-calculus

Published on 25 Mar 2026 - 9:25

112

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Discrete convolution and supports: can we have $\operatorname{supp}(f * g) \subsetneq \operatorname{supp}(f) + \operatorname{supp}(g)$?

Published on 25 Mar 2026 - 9:29

106

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About a discrete Fourier property

Published on 25 Mar 2026 - 9:25

50

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Calculating the area between two plots

Published on 25 Mar 2026 - 9:32

121

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$\sin x \cos x$ defined as a Cauchy Product of their Taylor Series.

Published on 14 Apr 2026 - 17:12

47

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Discrete Gamma function

Published on 30 Apr 2026 - 15:37

31

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Discretizing and solve $u''=\lambda u $ with Matrix scheme

Published on 25 Mar 2026 - 9:33

60

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what is the general form of $T(n)=nT(n-1)+1$

Published on 25 Mar 2026 - 9:28

169

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Unifying Perspectives on Discrete/Continuous Differentiation

Published on 25 Mar 2026 - 9:31

32

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Finding a $f(n)$ such that $\sum_{k=1}^{n}f(k)$ equals the natural logarithm of a sinusoid

Published on 25 Mar 2026 - 9:28

129

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Given this operator what is inverse operator?

Published on 25 Mar 2026 - 9:23

304

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Finding the decomposition of a function on a cubic spline basis of functions

Published on 25 Mar 2026 - 11:02

219

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Why the quadrature formula is exact one not an approximation?

Published on 25 Mar 2026 - 10:53

184

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Explanation of a method to compute $\sum_{k \le n} k^2$

Published on 25 Mar 2026 - 11:02

66

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Are there efficient algorithm to split a discrete function into piecewise convex functions?

Published on 25 Mar 2026 - 9:33

List Question

Going from discrete Poisson equation to (discrete) divergence calculation

Discrete convolution and supports: can we have $\operatorname{supp}(f * g) \subsetneq \operatorname{supp}(f) + \operatorname{supp}(g)$?

About a discrete Fourier property

Calculating the area between two plots

$\sin x \cos x$ defined as a Cauchy Product of their Taylor Series.

Discrete Gamma function

Discretizing and solve $u''=\lambda u $ with Matrix scheme

what is the general form of $T(n)=nT(n-1)+1$

Unifying Perspectives on Discrete/Continuous Differentiation

Finding a $f(n)$ such that $\sum_{k=1}^{n}f(k)$ equals the natural logarithm of a sinusoid

Given this operator what is inverse operator?

Finding the decomposition of a function on a cubic spline basis of functions

Why the quadrature formula is exact one not an approximation?

Explanation of a method to compute $\sum_{k \le n} k^2$

Are there efficient algorithm to split a discrete function into piecewise convex functions?

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