(n-1)st/th: n minus oneth or first?
123534
(k+1)th or (k+1)st?
13789
solve $T(n)=T(n-1)+T(\frac{n}{2})+n$
80648
What's $(-1)^{2/3}\; $?
107390
Why is (-1)(-1) = 1?
28854
Modulus with a negative number
76977
Prove that $f(n)$ is the nearest integer to $\frac12(1+\sqrt2)^{n+1}$?
114315
The sequence 1/(n-1) is apparently unbounded yet convergent. What am I missing here?
154356
The "difference" of two ordinals
94620
Which number was removed from the first $n$ naturals?
103987
What does the square root of minus $i$ equal?
87279
order of evaluation of operands
97952
Square root of 1 is (not) -1
60869
Is induction valid when starting at a negative number as a base case?
43283
More numbers between $[0,1]$ or $[1,\infty)$?
133695
Induction, 0'1 and 1's sequence fun question
58111
Typesetting 144...4 with "n times" under the 4's is easy, but what about \sqrt{144...4}?
21903
What is the difference between [0-9]+ and [0-9]++?