# Questions tagged [vocabulary]

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### Is it harmful to use the word "Cancel"?

Elsewhere, among a group of high school math teachers, I encountered a discussion of the term 'cancel'. Most (>20) people in the discussion had very strong feelings about why the term should be ...
2k views

### Can we avoid confusion over using "let" as a quantifier?

I've encountered the following misunderstanding. I pose a question (to undergraduates in the U.S.), for example: Let $P$ be a polygon of $n$ vertices. Is it true that every triangulation of $P$ has ...
463 views

### About the word "limit" used in calculus

In the introduction of the limits chapter of a scholar book I can read (translated and abstract) the following examples: "the price of a product has a limit value that, from this price, the number of ...
57 views

### Problem solving or question answering

What can be the most appropriate way of asking , Solve the problem or answer the question ? As common usage in examinations we have question papers for all subjects. Therefore like in other subjects ...
547 views

### Phase shift vs. horizontal shift, and frequency vs. angular frequency in sinusoidal functions

TL;DR version: It seems to me that high school curricula no longer distinguish between "horizontal shift" and "phase shift", or between "frequency" and "angular ...
23k views

### Examples of vocabulary that have different meanings in Mathematics compared to "everyday" English

I am asking this question here to obtain a nice reference list. I am asking for examples of words which have different connotations or meanings in Mathematics compared to English as taught in ...
328 views

### Word for the dimension of the vector space in which a vector lives?

The following issue comes up whenever I teach linear algebra: I want to have a quick way to say that a vector $(x,y,z)$ is in $\mathbb{R}^3$. I am tempted to say that it has "length $3$". But then ...
4k views

### "Sigma Notation" vs. "Summation Notation"

I was having a discussion with a colleague a few weeks ago, and she opted to use the term "Summation Notation" whereas I had a preference for "Sigma Notation". We didn't have the time to tangentially ...