
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 …
Approximate functional equation for the Riemann zeta function
Dec 12, 2018 · The Riemann zeta function admits the approximation $$\zeta (s)\sim\sum_ {n=1}^N\frac {1} {n^s}+\gamma (1-s)\sum_ {n=1}^M\frac {1} {n^ {1-s}},$$ in the critical strip, …
Is there a "greater than about" symbol? - Mathematics Stack …
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. …
What exactly is "approximation"? - Mathematics Stack Exchange
Jan 31, 2013 · 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 …
exponential function - Feynman's Trick for Approximating $e^x ...
Jul 7, 2017 · And he could approximate small values by performing some mental math to get an accurate approximation to three decimal places. For example, approximating e3.3 e 3.3, we …
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, 10 months ago Modified 3 years, 10 months ago
How can I approximate the logarithm of the sum?
Oct 16, 2017 · How can I approximate the logarithm of the sum? Ask Question Asked 11 years, 2 months ago Modified 1 year, 11 months ago
Approximation of a summation by an integral
Jan 26, 2017 · You can't really discuss "minimum error" in an absolute sense without discussing the function. // The gist is that one formulation of calculus is derived doing the reverse. Using …
Approximation of $e^ {-x}$ - Mathematics Stack Exchange
Oct 12, 2011 · Is there a method to mentally evaluate $e^{-x}$ for $x>0$? Just to have an idea when computing probabilities or anything that is an exponential function of some ...