- 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 does versus mean in the context of a graph?
I would agree with the rule " [dependent] versus [independent] " The word "versus" can mean "compared with," and it more frequently makes sense to compare a dependent value with its associated independent value, because well, the independent variable doesn't really "care" about the existence of the dependent variable, but the converse relationship is by definition
- inequality - Meaning of $\geqslant$, $\leqslant$, $\eqslantgtr . . .
What do slanted inequality signs mean? Specifically, these are $\\geqslant$, $\\leqslant$; and the variation: $\\eqslantgtr$, $\\eqslantless$ Is there any place I can look this up? I've searched Wik
- Can someone clearly explain about the lim sup and lim inf?
Can some explain the lim sup and lim inf? In my text book the definition of these two is this Let $(s_n)$ be a sequence in $\\mathbb{R}$ We define $$\\lim \\sup\\ s_n = \\lim_{N \\rightarrow \\infty}
- What is the meaning of Hermitian? - Mathematics Stack Exchange
Google search-bar gives the definition of Hermitian as: Hermitian: denoting or relating to a matrix in which those pairs of elements that are symmetrically placed with respect to the principal di
- What does the dot product of two vectors represent?
I know how to calculate the dot product of two vectors alright However, it is not clear to me what, exactly, does the dot product represent The product of two numbers, $2$ and $3$, we say that i
- What is the meaning of $\mathbb R^+$? - Mathematics Stack Exchange
$\mathbb R^+$ commonly denotes the set of positive real numbers, that is: $$\mathbb R^+ = \ {x\in\mathbb R\mid x>0\}$$ It is also denoted by $\mathbb R^ {>0},\mathbb R_+$ and so on For $\mathbb N$ and $\mathbb N^+$ the difference is similar, however it may be non-existent if you define $0\notin\mathbb N$ In many set theory books $0$ is a natural number, while in analysis it is often not
- What do the symbols d dx and dy dx mean? - Mathematics Stack Exchange
Okay this may sound stupid but I need a little help What do $\\Large \\frac{d}{dx}$ and $\\Large \\frac{dy}{dx}$ mean? I need a thorough explanation Thanks
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