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 …
How to derive a function to approximate $\\sqrt{3}$?
Basically, to approximate the location of a root of a function, we approximate the function locally by its tangent, find the tangents root instead, and that value is a decent approximation for the …
Approximate functional equation for the Riemann zeta function
Dec 12, 2018 · Approximate functional equation for the Riemann zeta function Ask Question Asked 7 years, 1 month ago Modified 7 years, 1 month ago
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 …
Approximating the error function erf by analytical functions
Aug 15, 2016 · My question is if I can find, or if there are known, substitutions for this non-elementary function in terms of elementary ones. In the sense above, i.e. the approximation is …
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, 1 month ago Modified 3 years, 1 month ago
spectral theory - Characterising the approximate point spectrum …
Mar 9, 2025 · @DeanMiller: I think it helps, but it is a bit confusing as the OP uses a definition of approximate spectrum that differs from Wikipedia's but which according to the addendum of …
calculus - Use Euler's method to approximate the solution for the ...
Feb 2, 2018 · Use Euler's method to approximate the solution for the following initial value problem. Ask Question Asked 8 years ago Modified 8 years ago
calculus - Use a power series to approximate the definite integral …
Use a power series to approximate the definite integral to six decimal places. $\int_ {0}^ {0.3} \frac {x^2} {1+x^4}$ I'm not sure how to find the sum of this for solving when it has x's in the nume...
General formula for solving quartic (degree $4$) equations
Jul 28, 2010 · Could you change the title to "Is there a general formula for solving 4th degree polynomial equations" or "Is there a general formula for solving quartic equations?"