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?

Someone recently asked me why a negative $\\times$ a negative is positive, and why a negative $\\times$ a positive is negative, etc. I went ahead and gave them a proof by contradiction like this: As...

Of course, if one is iterating 10 or more times, then you get non-ordered file names (because, for example, lexicographically, file10.txt comes between file1.txt and file2.txt )!

Jul 29, 2016 · I know, these times might be different for different machines, but the relative difference in order-of-magnitude of times will stand. Also, I know, the avg of times could have been a better …

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? …

Mockito.verify(mock, times(4)).send() This verifies that the method send was called 4 times on the mocked object. It will fail if it was called less or more than 4 times. If you just want to check, if the …