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- 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
- When should we write $\approx$ (approximately symbol)?
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- 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
- 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
- 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
- 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" (
- 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 $e^ {3 3}$, we have$$e^ {3 3}=e^ {2 3+1}\approx 10e\approx 27 18281\ldots$$But what I am confused is how Feynman knew how to correct for the small errors in his approximation
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