May 30, 2013 · In programming languages we are habitual of using asterisk (*) symbol for multiplication sign. I was wondering how time can map to a cross (or x alphabet symbol) symbol. Then I went back …

Apr 3, 2015 · The escape sequence you're using does not represent the × sign. It represents U+274C CROSS MARK, which is an entirely different symbol altogether (and one that happens to be …

Your title says something else than "infinity times zero". It says "infinity to the zeroth power". It is also an indefinite form because $$\infty^0 = \exp (0\log \infty) $$ but $\log\infty=\infty$, so the argument of …

May 16, 2019 · I want to verify if a method is called at least once through mockito verify. I used verify and it complains like this: org.mockito.exceptions.verification.TooManyActualInvocations: Wanted 1 …

Jun 13, 2020 · Is there a formal proof for $(-1) \\times (-1) = 1$? It's a fundamental formula not only in arithmetic but also in the whole of math. Is there a proof for it or is it just assumed?

How do I use *ngFor to repeat a HTML element multiple times? For eg: If I have a member variable assigned to 20. How do I use the *ngFor directive to make a div repeat 20 times?

Feb 12, 2017 · It's a simple question about regular expressions, but I'm not finding the answer. I want to determine whether a number appears in sequence exactly two or four times. What syntax can I use? …

Dec 10, 2015 · I am using React/JSX and Lodash in my app in order to accomplish what I want. I need to repeat an element a certain amount of times depending on a condition. How should I do that? …

Oct 22, 2020 · How can I repeat a string multiple times, multiple times? I know I can use a for loop, but I would like to repeat a string x times per row, over n rows. For example, if the user enters 2, the output

Feb 17, 2022 · I am attempting to use regex to match a pattern where we have some X (any character) which occurs exactly n many times in succession. I know a little about regex, but don't know of …