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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.

8534 questions
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Mapping of One Function to Another

Is there a term to describe a mapping of a set of functions to another set of functions? The derivative is an example of what I’m thinking of. Taking the derivative of a function gives a new function based on the old function.
Frasch
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Next multiple integer of a float number

Is there any way to get the next integer multiple of a given float number? An if so, how is it called? Let's say, if you have $1.5$, the next one will be $3 \,(= 1.5 \cdot 2 )$ , but when it's not that easy to guess, it can take some time without…
Dane411
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Phrasing a proportional declines in welfare transfers?

Every year social welfare has increased in my study, but these increases as a percentage of this total welfare transfer have fallen every year. I want to say that the social welfare transfer increase as a percentage of this total welfare transfer…
James Moore
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Property of being a transcendental number

Is there such a word as transcendentality to mean Proof of the transcendentality of the Euler number ?
Mohamed Ali
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I can't understand "min" in this equation

The above equation is from this paper: http://cs.brown.edu/courses/csci1290/results/final/valayshah/Matting-Levin-Lischinski-Weiss-CVPR06.pdf It has a min/a,b , which I don't understand. It is not the argmin, right?
Bill Yan
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Is there a term for the point/line/curve division of concavity of a surface in three dimensions?

Point of Inflection is the name given to the location at which a two dimensional curve changes from concave up to concave down. Is there a similarly defined term or concept in three dimensions where the division need not be a single point? for…
Mr.Mindor
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What's the English terminology for a "section" set?

I'm translating the terminology from my native language into English. The closest placeholder I have to the word is a "section" set, but I couldn't find anything like that online. We say that $A \subseteq \mathbb{Q}$ is a section if it does not…
daedsidog
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Is there a general term for a mapping of a set to itself?

I often wish to describe a mapping of a set to itself as injective, or bijective, etc. The sentence $f$ is an injective mapping of the set $\mathcal{A}$ into itself seems unnecessarily wordy. I would like to say something like: $f$ is an injective…
Steven Thomas Hatton
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Is there a mathematical sign for "or"?

Is there a mathematical sign for "or"? When I have to explain something in numbers, and I have two ways to explain it and I need to separate them by a sign.
Arithmetic-Enthusiast
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G is [property] if and only if N and G/N are both [property]

Is there a name for a property that is inherited by subgroups and quotients of a group? How about a property that if true for both a normal subgroup N and the quotient G/N is true for G? Or a name for the biconditional. I know periodicity and…
Wyatt Kuehster
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Is $(-1)^x=1$ an identity or a conditional equation?

I've heard that identities have infinitely many solutions, while conditional equations have only finitely many solutions. But what about $$(-1)^x=1 \:?$$ This certainly isn't an identity, is it? Is the problem with my definitions of conditional and…
Elem-Teach-w-Bach-n-Math-Ed
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Is there a name for the set you get if you replace the elements of a subset with their opposites?

I'm working on a tool to analyse how people vote. I have some data with a number of "policies", which are made up of expected votes on different divisions. So for example, a policy might specify voting "for" divisions 1 and 2 and "against"…
Simon
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Name for a ratio expressed as a decimal

Given the ratio 3:4, we can express this in different ways. 75% - Percent 3/4 - Fraction 3:4 - Ratio However, I was looking for a word to describe a ratio expressed just as a simple decimal value, or a number represented as per-ten or per-dec. 0.75…
Rich S
  • 101
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Is there a mathematical term of an range where the start=end?

If I was asking someone to define a range of numbers and they put the same number for the starting point as the ending point. Is there a mathematical term for this? For example, a range of 1 to 1. (Essentially, just 1).
Devon
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Player A wins a game 50% of the time, player B wins 80% of the time. Player B is ___% better than player A

There are two players A and B. They each play a game against a third player C. Player A has a 50% chance of winning, whereas player B has an 80% chance of winning. I want to use a sentence to say how much better is player B at beating player C,…
Sweeper
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