An approximate identity (in the sense that you've described) is a sequence of operators, usually derived from some "nice" class, that converge to the identity operator in the sense that you …

One can, for example, approximate continuous functions with polynomial functions, in which case the idea is to keep the area between the original function and the approximating function …

In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical …

Recently, I've seen a YouTube video where they approximate square roots real quick. They use this approximation : √x ≈ ⌊√x⌋ + x − (⌊√x⌋)2 2⌊√x⌋ I want to know the math behind this …

Jul 7, 2017 · Feynman knew how to approximate ex e x for small values of x x by noting the fact that

Oct 21, 2021 · I'd like to approximate an arc with a fixed number of line segments in L1 L 1 or L2 L 2 sense. Let's define the problem as follows:

Dec 12, 2018 · The interest of the Riemann-Siegel formula (and the approximate functional equation) is that alternative evaluations of ζ(s) ζ (s) using the finite sum ∑n=1X 1 ns ∑ n = 1 X …

Aug 16, 2017 · Let's say a number 998. I might approximate using the following ~1k. 1k is not definite number but it's more or less very close. Is this the correct way of using ~? I noticed …

Consider symmetric matrices A A and E E (both with dimensions n × n n × n), and let A^ = A + E A ^ = A + E. If u1 u 1 is the eigenvector of A A corresponding to the largest eigenvalue of A A …

Aug 12, 2015 · To indicate approximate equality, one can use ≃, ≅, ~, ♎, or ≒. I need to indicate an approximate inequality. Specifically, I know A is greater than a quantity of approximately B. …