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Questions tagged [mathematics]

This tag is for questions on the usage and meaning of mathematical terminology and the names for mathematical entities in English.

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1answer
26 views

What's the word for a new symbol, or usage of a new symbol?

Neologism is defined as: a new word, expression, or usage. In mathematics, there are new symbols created every year, and new usages for those symbols. Is there a word for a new symbol or usage, like ...
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1answer
19 views

“What is the probability both houses will be completed after 7 weeks?” meaning

When the question asks if the houses will be completed "after 7 weeks", someone says; it isn't asking if it will take greater than 7 weeks to complete the houses. "After 7 weeks" means "as soon as ...
0
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1answer
26 views

Usage of “it is” in formal, mathematical language

I have come across a scientific paper written by non-native speakers where some mathematical formulas are introduced by "it is". For example: Proof of Theorem X. Assume xyz. [Long mathematical ...
0
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1answer
26 views

“the matrix, M” Vs “M matrix”

I would like to understand how to refer to a given matrix in my English sentence. The matrix, M, refers to model A. or M matrix refers to model A. Which one is correct?
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3answers
60 views

Right preposition for: Evaluation of a function at 0 “in/at” its first argument [closed]

Consider a function f(x,y) defined on X x Y. One says that f(0,y) is the evaluation of f at 0 ... ... in its first argument ...at its first argument (none of these) My problem using searching ...
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2answers
37 views

Confusion between “where” and “with”

When I am reading some articles related to engineering or mathematics, I see many times the usage of "where" and "with" interchangeably. For example, f is the utility function mapping from S to R, ...
0
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2answers
21 views

looking for an alternative verb: computing the ratio of A and B

Maybe this is the native German speaker in me, but I am looking for an alternative verb to use, when I want to write: We compute the ratio of A and B. I am not happy with the verbs to compute/to ...
2
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1answer
23 views

Word for a value incremented by certain amount?

When we take a number and multiply it by 10 we get a value ten times the original. Then, what do we call the result of adding 10 to a previous value? i.e., what can I put in place of the ellipsis in ...
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1answer
42 views

“The statement is witnessed”

The derivability of a given statement can be justified by exhibiting a derivation tree [...] For example, if [ some definitions ] then the derivability of the statement if t then false else ...
4
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1answer
103 views

40 percent of X's Y: Is the percentage about X or Y?

Some 40 percent of people's "first memory" happened at an age when it wasn't possible to create memories. Source Context shows the percentage is about the people. The word memory, being singular, ...
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1answer
59 views

In math, how to express the tangent contact with the function

In math, I want to say that there is no possibility that an asymptote will be a tangent to the function. How should I write it?
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3answers
2k views

What is a non-prime number greater than 1 called in English?

I know that this a math question, but as it is really a very basic math concept I think any English user would know it, and it must be more related to English than knowing the math. We call a number ...
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4answers
2k views

How to describe a sample of one person?

Statistically, how to describe a theory making from one's own experience and haven't been tested by others? A sample of one? A one-person sample? Googling both phrases doesn't yield any meaningful ...
0
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1answer
124 views

What does “a declining rate of increase in” mean?

Context: These figures demonstrate a declining rate of increase in arrivals (in 2006, arrivals fell by 4 per cent) and more significantly in receipts, with a significant reduction in per person ...
1
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1answer
48 views

Possessive case in 'Jacobi identity'

I am not sure this is the right place to ask, but I give it a try anyway. I am reading a book about how to write math. At some point the author shows the grammar rule for the possessive case: e.g. ...
2
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1answer
31 views

How to pronounce A'B'C'?

Triangles ABC and A'B'C' are similar. Given: m' > m. How to pronounce ' (штрих in Russian)?
1
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1answer
255 views

Plural of a mathematical variable

How should I write the plural of a mathematical variable? E.g., in these sentences: The values of f(ui|uj) are independent for different [uj/ujs/uj's]. The values of f(ui|uj) are independent for ...
0
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1answer
46 views

percentage, rate, or ratio which is correct?

My salary for last month was $1,000 and for this month was $1,100, that is, my salary increased by 10%. In this case, which of the following is correct? The rate/ratio/percentage of change in my ...
2
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1answer
42 views

Word for clusters of a node in a hierarchy

Consider a hierarchy of clusters, in which the leaves are nodes. How can I refer to all the the clusters that contain a node? In other words, for a node I want to refer to its direct cluster, the ...
0
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1answer
57 views

What is an equation that consists of a proportionality symbol called? [closed]

When I want to refer to an equation similar to this image, what term should I use? Is it correct to say "Equation 3", although the equation contains a proportionality symbol?
1
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1answer
42 views

Using none for three or more nos. in mathematics

Which form is correct? None of A,B or C divides X or None of A,B and C divides X
0
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1answer
69 views

Is there a name indicating the following graph?

I know that the following graph is called a "Histogram". On the other hand, what ist the name of the following graph? I think this is one of the most common graphs, but I do not know this graph's ...
6
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5answers
512 views

Arithmetic expressions: singular or plural?

Five and two make/makes seven. Five times two is/are ten. Five minus two leave/leaves three. Which ones are correct? Could someone explain the logic behind them?
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2answers
76 views

Galois Theory — an implied genitive or not genitive at all?

In the field of mathematics there are many concepts named after certain individuals: the Pythagoras's theorem, Galois theory, Hilbert space and so forth. In my native tongue of Finnish the person's ...
2
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2answers
56 views

Can the difference in velocities be called as “velocities difference”?

Tortoises walk with the speed of 0.133 m/s. Rabbits run with the speed of 20 m/s. The difference in their speed is Δv = 20 - 0.133 ≈ 20 m/s. Can I say the speeds difference/velocities difference of ...
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1answer
43 views

“it modulo” meaning in Math context?

What is the meaning of this sentence? Since the sum can be large, find it modulo 109 + 7.
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2answers
69 views

What is the exact terminology for the four basic mathematical operations?

In my native language we have clearly defined and official terms for the operands involved in mathematical calculations. I am talking about the basic four arithmetic operations addition, subtraction, ...
4
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1answer
62 views

A kids-friendly, nontechnical alternative to the term “arithmetic operations”?

The term "arithmetic operations" from basic grammar school mathematics is highly formal and technical in my ears. In my native Danish language it translates into: The arithmetic operations = De ...
2
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2answers
43 views

My really old wonder: “defined by” v.s. “defined as”

I understand the following sentence: The rule was defined as ~~~~ by John. It can be shortened by omitting "as ~~~~" or "by John", like The rule was defined as ~~~~. The rule was defined ...
0
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1answer
38 views

How is a number with measure unit named

I am trying to figure out how a number together with measure unit name could be called as a whole. "Named number" is definitely not the right term. Examples: 20,5 m 15 kg -17 °C 0,00073 kg/L/°C The ...
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2answers
758 views

Negative numbers: “minus” or “negative”?

I noticed that when negative number are used in speech, there are two dominant patterns. Taking "-10" as an example, in some cases it is pronounced "negative ten", while in others it is "minus ten". ...
0
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2answers
125 views

Say ABCDE is a pentagon. Is “ABCDE” the name of this pentagon?

This could be the start of a maths' exercise: "ABCDE is a pentagon." In french, we would say "nom" (name) of the polygon to refer to "ABCDE", while "nature" of the polygon would refer to "pentagon". ...
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4answers
8k views

Do digits after the decimal point have a specific name?

I would like to know if there's a name for "digits after the decimal point" (in only one or two words). For instance in french these digits are called "décimales". I've found "decimal places", but I ...
2
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1answer
135 views

What do you call the reflection of a point through a line? Reflecting/reflection point? [closed]

I want to write a sentence with math contents. X, Y are points, and m is a line. 1. X is the reflecting point of Y with respect to m. 2. X is the reflection point of Y with respect to m. Which ...
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2answers
293 views

until July 28th - meaning

That's all the homework UNTIL July 28th When we say until July 28th , do we count day 28 as well? or does it say all assignments were marked before day 28? While we are it , do we say day 28th or ...
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1answer
69 views

English fraction ex) one third etc

I know when comparing two things using multiplicative numerals, some usages like the following sentences are possible. This book is twice the price of that book. This book is twice as expensive ...
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3answers
699 views

What does the phrase “to within” mean?

While I was reading the book 'Introduction to Algorithms by CLRS', I came across the sentence: ...is equal to g(n) to within a constant factor. I've seen something about it in Merriam-Webster, ...
2
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2answers
349 views

Hyphens after Abbreviations and Foreign Letters

Are hyphens used correctly in the examples below? In other words, is there a rule in English that either requires or allows these hyphenations. In my area of research, there is what is called the ...
3
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2answers
131 views

Lowercase/capital Greek letters written in English

Consider two examples: Gamma function written as Γ(n); gamma-butyrolactone written as γ-butyrolactone. Is there a rule which says how the lowercase and capital Greek letters must be reflected when ...
0
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1answer
2k views

Meaning of “3e9 seconds” in this blog post? [closed]

I was reading a FaceBook note, Mastering Programming by a renowned software engineer Kent Beck. This is the 2nd paragraph. Here are ways effective programmers get the most out of their precious ...
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2answers
4k views

The word “times” instead of “multiplied by”

A shorthand English word for 3 multiplied by 4 is: 3 times 4 I am aware that this comes from spoken language as in "we have 3 four times", a version I know from my native language as well. I would ...
0
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1answer
227 views

“elements in” vs “elements of”

Let A be a set, which of the following is grammatically correct an element in A, elements in A, a subset in A, subsets in A, or an element of A, elements of A, a subset of A, subsets of A? I have ...
3
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2answers
968 views

What is the meaning of “raised to some power” in the following sentence?

What is the meaning of "raised to some power" in the following sentence? In its most simple and basic form, a moment is the product of the distance to some point, raised to some power, multiplied ...
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2answers
112 views

polynomial time in?

Related to exponential in terms of? (nonetheless different from it): Assume that you have an algorithm (producing gizmos) whose inputs are three numbers t, d, and h, which are interpreted by a human ...
2
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2answers
68 views

exponential in terms of?

I'm speaking about a particular quantity, let us call it the number of gizmos, which depends on the number of thingums, doodahs, and hickeys. Mathematically, we have a function g which is represented ...
2
votes
4answers
196 views

Quantum vs number

Let us suppose one has a sentence : I want to find number of digits in the number. Do one allowed to change first occurrence of the word number to the word quantum? So that the new sentence would be : ...
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2answers
2k views

“Assume something be” or “Assume something is”?

I am writing a scientific paper. I am not sure about the usage of "assume." Should I say "Let us assume x is real," or should I say "Let us assume x be real"?
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1answer
46 views

How do you say the order of magnitude related to a specific value? [closed]

I have to explain a range of measures affecting a specific value, so I think writing this sentence: response time is limited to units of second in order of magnitude Is it correct?
0
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1answer
43 views

How to interprete a vector which “pointed down the middle of the data”?

In this tutorial (line three) it is hard for me to interpret what "point down the middle of the data" means. I know from the tutorial the mentioned vector (doted line in the following plot) is the one ...
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votes
2answers
493 views

What do we call these two parts of the s-curve?

I'm translating a text where a 4-parameter dose-response log curve is fitted to experimentally obtained data. The text says: The obtained dose-response curve (S-shaped) should contain points on the ...