Difference between "≈", "≃", and "≅" - Mathematics Stack Exchange
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 …
What is the approximate identity? - Mathematics Stack Exchange
Feb 25, 2017 · 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 …
What exactly is "approximation"? - Mathematics Stack Exchange
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 …
Approximate solution to an equation with a high-degree polynomial
Jan 19, 2022 · Approximate solution to an equation with a high-degree polynomial Ask Question Asked 3 years, 11 months ago Modified 3 years, 11 months ago
notation - Different use of approximate equality symbols
Apr 12, 2016 · I have been wondering for a long time whether there is a unequivocal way to define and use the symbols commonly adopted for an approximate equality between two quantities. I …
real analysis - How to approximate $e^ {-x}$ when $x$ is large ...
Jan 1, 2023 · How to approximate $e^ {-x}$ when $x$ is large Ask Question Asked 3 years ago Modified 3 years ago
taylor expansion - Approximate $\coth (x)$ around $x = 0
Jan 18, 2015 · I'm trying to approximate coth(x) coth (x) around x = 0 x = 0, up to say, third order in x x. Now obviously a simple taylor expansion doesn't work, as it diverges around x = 0 x = 0. …
Approximation of numbers: Am I using ~ correctly?
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 …
Use of approximation sign - Mathematics Stack Exchange
Aug 2, 2017 · The "and" is a pointer that (a) first we approximate and (b) then we compute exactly. The final result is an approximation only because of (a). Related to this, it is useful to …
Approximation of square roots - Mathematics Stack Exchange
Oct 2, 2018 · Recently, I've seen a YouTube video where they approximate square roots real quick. They use this approximation : $$\\sqrt{x} \\approx \\lfloor \\sqrt{x} \\rfloor+ ...