Is 5/10/20/40 a valid mathematical expression?
133448
What is the value of $a/b/c$?
127560
Question about repeating decimal?
123140
Using 9-test or 11-test to find digit x in 52817*3212146 = 169655x15282
125356
Is 1/0 a legal Java expression?
33737
Does $1.0000000000\cdots 1$ with an infinite number of $0$ in it exist?
31165
Is this workaround used by my book to find the value of $1/0$ legitimate?
110331
How to match exponent that might be 1?
79969
Proof that a formula $\theta$ is valid if and only if $\forall x \theta$ is valid
101512
Is there an numeric arithmetic with a single operator?
127446
How do we find a fraction with whose decimal expansion has a given repeating pattern?
76434
What is the measure of the set of numbers in $[0,1]$ whose decimal expansions do not contain $5$?
18075
How to mathematically evaluate a string like "2-1" to produce "1"?
15793
Is the formula $(\text{ker }A)^\perp=\text{im }A^T$ necessarily true?
134578
Convention of digit grouping after decimal point
140352
How can I take a sensitive result for this equation?
150453
How do I display an expression with negative powers?
37826
Is $0.23571113171923293137\dots$ transcendental?