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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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### Exist vs exists in mathematics

Are there any rules about when to say exist and when to say exists in mathematics? For example, both these sentences appear in a book of mine: There exist αi in I such that xn = Σ αi xi. There ...
3k views

### How to read this mathematics value: 10^9

I have this value How to read that in English? translating from my native language, I would say Ten base of nine. but is that really correct?
7k views

### How do you read these mathematical expressions aloud?

(both above are from Wikipedia.org)
2k views

### What do I call the ′ in mathematical formulae?

As in x′ = x + t "Ex (?) equals ex plus tee". In Russian it is called "штрих" (shtrikch).
2k views

### How do you read the differential mark aloud?

How do you read the differential mark?
790 views

### How to pronounce decimals?

Something like: 0.1 0.23 0.999 How to pronounce them correctly in English?
10k 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 ...
8k views

### Which way: One and one ARE two? One and one IS two?

Which verb is grammatically correct when used to describe addition? One and one are two. One and one is two.
1k 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". ...
2k views

### What is the right term to indicate the opposite of the math operation distribution?

I am studying math, and there's a term I don't know how to express, I just know that is the opposite of the operation of distribution of terms in an algebraic expression. For example, from the basic ...
203 views

### NumerICs vs numerALs, what is the difference if any?

I looked up MW but failed to see whether they are interchangeable. On a daily basis I find difficulties in adjective forming, so I guess this is just one more of the -IC versus -AL dilemmas, no?
78 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 ...