- 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 Operators B
- What is the approximate identity? - Mathematics Stack Exchange
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 described
- notation - Different use of approximate equality symbols - Mathematics . . .
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 am a physicist, and I o
- real analysis - How to approximate $e^ {-x}$ when $x$ is large . . .
When the value of $x$ is small, such as when $x$ is less than $1$, we can use the Taylor series to approximate its behavior The first few terms of the series often
- How to approximate $\sin x$ without using trigonometry tables?
An Opening Note : First of all, I want to make this very clear that by the phrase "without using trigonometry tables", I mean without using them to find $\\sin$ values of the "non-standard angles" (
- Approximation of square roots - Mathematics Stack Exchange
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+
- Is there a greater than about symbol? - Mathematics Stack Exchange
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 Is there a way to
- exponential function - Feynmans Trick for Approximating $e^x . . .
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 have e3 3 = e2 3+1 ≈ 10e≈ 27 18281… e 3 3 = e 2 3 + 1 ≈ 10 e ≈ 27 18281 But what I am confused is how Feynman knew how to correct for the small errors in his
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