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Questions tagged [pronunciation]

Questions on the pronunciation of mathematical terms and notation.

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What is the name of $\mathscr{C}(X) $?

One thing that I hate about Baby Rudin is that the author doesn’t name the theorems after mathematicians; instead, he uses numbers (3.37,4.15 , etc ), and I think it is easier to remember if he uses ...
Mathematics enjoyer's user avatar
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0 answers
61 views

How do you pronounce $\&$ in combinatorial game theory!

I have watched Owen Maitzen’s video on combinatorial game theory, and I saw this equation: $\bf{hi} + \bf{oof} = \bf{hot} \, \rm{\&} \, \bf{oof}$ Owen Maitzen pronounced it 'hi plus oof equals hot ...
3-1-4-One-Five's user avatar
3 votes
1 answer
249 views

Pronunciation of Combinatorial Functions

A quite unimportant, but still systematically necessary question is how you go about pronouncing some of the basic combinatorial functions. Namely, the combination and permutation function. How do you ...
Camelot823's user avatar
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1 vote
1 answer
157 views

Is there a resource for the correct pronunciation of names of non-English mathematicians (eg, Fresnel, Fermat, Galois)? [closed]

English people are bad at mathematics $\implies$ most great mathematicians were not English $\implies$ most important mathematical objects are named after non-English people. For example: Today I ...
MathematicalOrchid's user avatar
1 vote
0 answers
174 views

How to pronounce the symbols $\mathcal{O}_K$ and $\mathfrak{m}_K$?

The context is algebraic number theory. How to pronounce the symbols $\mathcal{O}_K$ (ring of integers in $K$) and $\mathfrak{m}_K$ (maximal ideal) ? How to pronounce $\mathcal{O}_K^n$ ? Note ...
MAS's user avatar
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1 vote
1 answer
286 views

How do you read set union and intersection notation?

How do you read $$A \bigcup B $$ "The union of A and B" (starting with the operator) is unintuitive ("x plus y" is more intuitive and shorter than "the addition of x and y&...
Chris Shiherlis's user avatar
1 vote
0 answers
235 views

Pronunciation of multivariable function $f(x,y,z)$.

Can someone tell me how is $f(x,y)$ and $f(x,y,z)$ is pronounced? Is $f(x,y)$ read as f of x and y? Is $f(x,y,z)$ said as f of x, y, and z? Thank you.
BBS's user avatar
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4 votes
1 answer
191 views

How to say $!n$ out loud [closed]

Is there a common way to pronounce the expression $!n$ for the number of derangements of $n$ objects, other than "The number of derangements of $n$ objects?" Something like "factorial $...
saulspatz's user avatar
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4 votes
2 answers
822 views

How do you pronounce $\tilde{R}$?

I found $\tilde{R}$ in a mathematical text, and I would like to know how this is pronounced. I tried to search on the internet but was not able to find anything related.
01000110's user avatar
  • 257
1 vote
1 answer
109 views

How do you read aloud a probability notation in English? [closed]

I'm learning probability and I'm trying to "translate" one line from mathematical notation to English. It's the definition of a random variable: $$\textbf{X}^{-1}(-\infty,x)=\{w\in\Omega;\...
Petra's user avatar
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How to pronounce $\breve{E}$?

How to pronounce $\breve{E}$ ? The TeX command for it is "\breve{E}" , but I don't know if it would be correct to say "E breve" during a presentation.
Kevin Fredolster's user avatar
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2k views

How is "X with tilde on top" pronounced when spoken?

How is $\tilde{X}$ pronounced when a paper is being read out loud? Sorry if this is a duplicate but couldn't figure out how to search for it. TIA
Pete W's user avatar
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1 answer
443 views

How do you read an expression such as e^{-rt}

I heard people say that the exponential to the power of R times T e^{rt} Is it normal? What about other similar things? e^{-rt} Is it read ...
Stats Cruncher's user avatar
4 votes
3 answers
370 views

How to read $x^n-1$ and $x^{n-1}$?

Now, it may sound absurd, but I would like to know (if exists), how to read $(x^{n-1})$ and $(x^n-1)$ distinctly and practice this it in everyday Mathematics. As of now, I read $(x^{n-1})$ as, "x ...
Sahil's user avatar
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2 answers
168 views

How do you read $|a+b| \le |a|+|b|?$

How do you read $|a+b| \le |a|+|b|?$ We have a lesson in mathematical language and sentences. This one is the hardest to answer.
eru's user avatar
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1 answer
755 views

How is an ordered pair (a,b) actually read aloud? An ordered tuple?

I know what an ordered tuple (e.g. ordered pair) is. I'm not wondering for any reason in particular, but I couldn't find anything on the internet. The question is the title. I'm usually one to try and ...
Pineapple Fish's user avatar
3 votes
1 answer
110 views

Pronunciation of HOMFLY polynomial

How should HOMFLY polynomial be pronounced? It is an acronym, but clearly chosen so that it could be pronounced as a word.
Phira's user avatar
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2 votes
0 answers
140 views

Pronouncing the symbol $!$ as understood as a morphism in category theory.

How does one pronounce the symbol $!$ as a morphism in category theory? I heard it spoken as, "shriek" here, but I don't know whether that's the convention or not. In my opinion, "exclamation mark" ...
Shaun's user avatar
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1 answer
93 views

English pronunciation of semi colon in probabilities

In English, I believe the notation $p(x, z \mid \theta)$ is pronounced something like; pee-of-ex-zee-given-theta But I sometimes see a semicolon used, as in $p(x, z \,; \theta)$, which I believe ...
aaronsnoswell's user avatar
3 votes
2 answers
92 views

How do you pronounce $\mathbb{F}_2, \mathbb{F}_2^n, \mathbb{N}^k, [n] = \{1,\ldots,n\},$ and $S \subseteq [n]$?

How do you pronounce $\mathbb{F}_2, \mathbb{F}_2^n, \mathbb{N}^k, [n] = \{1,\ldots,n\},$ and $S \subseteq [n]$ when you're reading a text? I've just started reading more advanced math textbooks and ...
apologies's user avatar
2 votes
0 answers
111 views

Subgroups of the Torsion Subgroup of an Elliptic Curve

A silly question. I am working through Silverman and Tate, Rational Points on Elliptic Curves Let $E$ be an elliptic curve given by a Weierstrass equation $$E:y^2=x^3+ax^2+bx+c, \quad a,b,c \in \...
Peter_Pan's user avatar
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3 votes
1 answer
183 views

Italian pronunciation of the symbol $dx$

I am afraid this question is going to be rather specific and perhaps off-topic, but I hope some of the Italian users (at least) can help me out with this curiosity. I have always been used to the ...
Gibbs's user avatar
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2 votes
1 answer
178 views

How to pronounce $C^\infty$?

I am thinking "C-infinite" or "infinitely differentiable". The second one is absolutely correct, but too long for colloquial use. I'd prefer the first one if possible. Is it correct or common?
trisct's user avatar
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2 votes
1 answer
629 views

How to pronounce "$\mapsto$", as in "$x\mapsto f(x)$"? [duplicate]

Lots of symbols have their pronunciations. For instance, "$\tbinom {n}{k}$" is pronounced "$n$ choose $k$", and "$\forall$" is pronounced "for all". The symbol ...
JJJohn's user avatar
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3 votes
1 answer
195 views

How to pronounce $\Sigma_1$?

I have to give a presentation and part of it involves talking about the recursively enumerable sets. However, some of the theorems I am quoting (like Rosser's proof of Godel's first incompleteness ...
Atlas's user avatar
  • 169
2 votes
1 answer
123 views

How do you pronounce $\check{n}$?

I did search the internet but could not find a source mentioning the pronunciation of the mathematical symbol $\mathbf{\check{}}$ as in $\check{n}$. How do you pronounce it?
Evike's user avatar
  • 45
8 votes
3 answers
1k views

What is the generally accepted pronunciation of “topoi”?

Apologies if this annoys proponents of “toposes “. It appears to me that there are three main candidates for pronunciation, all focusing on the last syllable: Top-oy (rhyming with “toy” in British ...
Nethesis's user avatar
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1 vote
2 answers
117 views

How to verbalise ':' in a definition?

When I write a definition, e.g. Let $f : \mathbb{R} \rightarrow \mathbb{R}$ How does one pronounce the colon ':' symbol? I would naively guess 'Let f be-a-function-mapping from the reals to the ...
aaronsnoswell's user avatar
6 votes
1 answer
411 views

How to read the expression of an affine connection: $\nabla_X Y$?

I am studying Riemannian Geometry from the textbook Riemannian Geometry by do Carmo (English edition). In section 2 of chapter 2, page 50, he defines an affine connection as follows: 2.1 Definition....
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0 answers
69 views

The correct spelling of the space $L^4$

Good morning everybody, It is well-known that the space of $L^{2}$ function is called: "the space of square integrable functions" What about the space of $L^{4}$ functions? can we say "the space of ...
A s's user avatar
  • 708
0 votes
1 answer
133 views

How to pronounce the notation $\lim\limits_{x \to a^+} F(x, y) = F(a^+, y) = F(a, y)$

Related: How does the notation of limits read in plain English? How does the following notation read in plain English: I can't interpret it myself. $$\lim\limits_{x \to a^+} F(x, y) = F(a^+, y) = F(...
user366312's user avatar
  • 1,651
0 votes
2 answers
758 views

How to pronounce the notation $\lim\limits_{x \to \infty \\ y \to \infty} F(x, y) = 1$

How does the following notation read in plain English: $$\lim\limits_{x \to \infty \\ y \to \infty} F(x, y) = 1$$ As far as I can read: If $x$ and $y$ approaches $\infty$, the value of ...
user366312's user avatar
  • 1,651
4 votes
1 answer
174 views

How to pronounce "equicontinuous"?

I couldn't find the word equicontinuous in the dictionary, so I hope this is the right place to ask. The definition can be found in the wikipedia: https://en.wikipedia.org/wiki/Equicontinuity If I ...
Hwang's user avatar
  • 664
2 votes
1 answer
99 views

How to pronounce this notation

Reading this paper : https://arxiv.org/pdf/1608.04644.pdf the following term : $$L_\infty$$ is referenced in the context of : How is $L_\infty$ pronounced ? Is it just "L infinity" ?
blue-sky's user avatar
  • 2,140
0 votes
1 answer
189 views

How to pronounce of $0^+$ and $0^-$?

I'm not an English native speaker and I don't know how to pronounce $0^+$ and $0^-$. Could you help me, please? I'm referring to the symbols that appear for example in the limits $lim_{x\to 0^+}f(x)...
John N.'s user avatar
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0 answers
2k views

How do you pronounce $\frac{dy}{dx}$?

Just out of curiosity... I always say "dee-why dee-ex" Some people say "dee-why by dee-ex" (especially many of my maths lecturers) Others say "dee-why on/over dee-ex" I've noticed that most of my ...
Mohamed Magdy's user avatar
9 votes
2 answers
5k views

How to pronounce $\mathcal{E}$?

How to say $\mathcal{E}$ when we are speaking about mathematics? Can I call it "curly E"? And also how to pronounce $\mathcal{A}$ and $\mathcal{B}$ and $\mathcal{P}$ and so on?
Ma Joad's user avatar
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0 votes
1 answer
335 views

Need help with notation - Supremum

I'm reading a paper, 'Invariant Scattering Convolution Networks'. Equation 2, page 2 reads as follows; I'm not familiar with the $\underset{u}{sup}$ notation - does this refer to the support of the ...
aaronsnoswell's user avatar
3 votes
0 answers
77 views

Pronunciation of $\in$-minimal

How do I pronounce $\in$-minimal? I need to know it to see whether I should write "$X$ has a $\in$-minimal element" or "$X$ has an $\in$-minimal element".
Kaj's user avatar
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2 votes
1 answer
13k views

How to pronounce "L'Hospital"? [closed]

How to pronounce "L'Hospital"? Some people pronounce like "lapital". When I was in 12th standard, some teachers used to pronounce "lapital" and some used to pronounce "L hospital".
Infinite's user avatar
  • 1,443
0 votes
1 answer
96 views

How to read $\textbf{A}^{op}$ in category theory?

Simple question, how does one pronounce the name of the category $\textbf{A}^{op}$, defined as the dual of the category $\textbf{A}$? Reading it, I want to say $\textit{ay-opp}$ /e$ɪ$-$ɑ$p/.
user avatar
34 votes
19 answers
25k views

How is $\ln$ pronounced by English speakers?

I have always heard an expression like $\ln (x^2)$ pronounced aloud as "ell-enn ex squared". That is, the name of the function $\ln$ is read aloud as a two-letter abbreviation. However, I recently ...
mweiss's user avatar
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1 vote
1 answer
1k views

Pronunciation of Limacon

I have a presentation on common polar graphs. one of them is the graph of $b+a\cos{\theta}$, or a limacon. however, i'm not sure as to whether it's pronounced -lih-muh-son -lih-muh-con -lie-ma-...
Saketh Malyala's user avatar
0 votes
1 answer
486 views

Pronunciation of variable with subindex

This question is about pronunciation of variables with a subindex such as $P_i$. In this Stanford video lecture on statistical mechanics $P_i$ is pronounced " Pees of i" and $E_i$ is pronounced "Ees ...
Svaberg's user avatar
  • 111
1 vote
3 answers
265 views

How to pronounce $\circledcirc$ (an infinitesimal)?

I'm reading a paper in which $\circledcirc$ is used to mean an infinitesimal (from nonstandard analysis). So, for example, you would have $0<\circledcirc^2<\circledcirc$. I'm wondering how to ...
Nathan's user avatar
  • 193
2 votes
1 answer
491 views

$\operatorname{Spec}(A)$ is called "the (prime) spectrum of $A$". What is $\operatorname{Proj}(A)$ called?

Modern algebraic geometry makes heavy use of two constructions that turn rings into schemes: Spec and Proj. The first construction turns a commutative ring $A$ into a scheme $\operatorname{Spec}(A)$, ...
user134824's user avatar
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5 votes
1 answer
731 views

How to say (pronounce) $\partial$ in the context of homology?

I am curious what is the common way to say (in English contexts) the name of $\partial$ (the boundary homomorphism) in homology theory. I.e. when giving a talk / speaking. The boundary homomorphism ...
yoyostein's user avatar
  • 19.7k
4 votes
1 answer
1k views

Correct pronunciation of $\in$.

I was curious whether there is a standard reference for the correct English pronunciation of general mathematical symbols. In particular, I am wondering how to pronounce the symbol "$\in$" correctly, ...
user avatar
10 votes
4 answers
1k views

How to say $\sin^2(x)$ in English

What's the official way to say $\sin^2(x)$? Is it "sin squared of $x$" or "sin of x, pause, squared"?
Schmidt's user avatar
  • 647
1 vote
0 answers
110 views

How do you pronounce the expression $(i|i)$?

I'm writing a library for translating latex into readable speech, and usually I rely on Larry's speakeasy to let me know how to read an equation. Seeing as I could not find an answer for the ...
Anon's user avatar
  • 213