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Questions tagged [terminology]

Questions on the usage and meaning of words in mathematics, the names for mathematical entities, and other such questions.

Terminology is a discipline that studies, among other things, the development of terms and their interrelationships. This tag is intended to be used for questions on the usage and meaning of words in mathematics, the names for mathematical entities, and other such questions.

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How should one rank a combination of positive and negative numbers from smallest to largest?

I thought size was the distance from zero, in which case ordering {-1, 2, -3} would be {-1, 2, -3}, but I saw it ordered as {-3, -1, 2}. Which method is correct?
Kelmikra
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Mathematical principles and theorems - what is the difference?

For me, intuitively, a mathematical principle is simply an influential theorem. Still, I am not clear on how and who decides (or decided) if a theorem/statement is a mathematical principle. Can you clarify this to me? NOTE: Wikipedia lists around 40…
VividD
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Is there a mathematical graph to describe completing a collection?

Example: there are 10 items in a collection. Getting items in the collection when you start out with none seems fairly simple, with some duplicates being acquired over time. But when you get down to the last 2 or last item in the collection, it…
yuritsuki
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Meaning of "within a constant factor from"?

When a quantity $A$ is said to be "within a constant factor from" another quantity $B$, does it mean that there exists a posiitve constant $C$, so that $A \leq C B$? does it assume $A$ and $B$ both are nonnegative? Thanks.
Tim
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How to mathematically formulate and illustrate the following statement?

English is not my native language and I'm trying formulate the following statement as simple and as mathematical as I can: A code is composed of a family name followed by n option(s):     1: {family}     n: option(s) I have n+1 in mind but I'm…
maxbeaudoin
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Don't understand question: correlation w.r.t.

This is related to pattern recognition, specifically augmented neural networks. I do not understand what a correlation "w.r.t." is, or what it stands for. Anyone? Here is the question in full: Vary the learning rate, the number of hidden layer…
Karl Morrison
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Function 'result arity'

Given a map from $m$-tuples to $n$-tuples, $m$ can be referred to as the 'arity' of the mapping. What's the terminology for $n$? I feel like this should be brain-dead easy to find but my Google/StackExchange/WolframMathWorld-fu clearly isn't strong…
user
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what is the name of the sum of all numbers inside a number, including the number itself?

ex.: 1+2+3+4+5+6+7+8+9+10=55 this it what I mean by "numbers inside "10", including "10" ...I was in bed, thinking of a quick way to calculate that, but with a way bigger number ( ex.: 149581730012375017587312) and I quickly came up with a…
dahulius
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Bigger and Smaller for numbers - Works in both directions?

I wanted to know how to use the right term when explaining the difference between numbers. For example, I have two lenses: Lens 1 = 10x zoom Lens 2 = 5x zoom I know I can say that the 1 has 2x bigger magnification, but can I say that lens 2 has 2x…
Liron Harel
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What's the name for this writing of a polynomial of degree 2?

Going from $$2 x^2 + 12 x + 25$$ to the form (1) $$2(x+3)^2+7$$ is called "mise sous forme canonique du polynôme du second degré" in French, but it seems (I looked in various sources) that the translation for that is not "canonical form". Does this…
Basj
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Is there a name for a set of numbers that equally surround another number?

This has to do with web page pagination, let's say there are a lot of pages (e.g. 100) and you're on page 35 and the pagination links at the bottom of the page show: prev | 32 | 33 | 34 | 35 | 36 | 37 | 38 | next So three pages on either side of the…
kreek
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Terminology: "entries" of a tuple

Is there a conventional term for the "entries" of a tuple? Possible candidates that come to mind are "entry," "term," and "element," but I don't know if one is more common than the others.
angryavian
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An English question for a logical term

Consider a tuple of logical expressions: $(P_1, \ldots, P_n)$ such that $P_i\Rightarrow P_{i+1}$ for every $i=1,\ldots,n-1$. An English question: Should I call it implications tuple or tuple of implications?
porton
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In $y = 1.5x + 0.9$, is $y$ directly proportional to $x$?

If $y$-intercept not equal $0$, is it still considered directly proportional?
zbz.lvlv
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What's this equation called (one more each iteration, find total for given iteration)?

Say you have +1 on first iteration, +2 on second, and so on until N, and you want to know the total. That's easily calculate using (N * (N + 1) ) / 2. What's that equation or technique called?
zipquincy
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