Non-repeating decimals in 1/n
35110
Predicting the number of decimal digits needed to express a rational number
31907
Why does N[1.000 01, 10] return 1.00001, but N[1.000 001, 10] returns only 1.?
72223
Last non Zero digit of a Factorial
134690
How to use siunitx with non numerical values?
20988
Notation for specifying the fractional part of a number
26320
Is there a way to round a decimal place to the nearest whole in javascript?
128278
How to prevent Round with hidden fractions
4861
Can 0.99999999999 be rounded to 1.0 when multiplying?
143620
How many $n$-digit decimal sequences (using the digits $0 = 9$) are there in which the digits $1$, $2$ and $3$ all appear?
134578
Convention of digit grouping after decimal point
9331
Repeating an equation including its content and number
14928
Formatting a number with exactly two decimals in JavaScript
33256
Simple regular expression for a decimal with a precision of 2
63804
Proof that every repeating decimal is rational
148703
Permutations with repeating digits
20135
Measure of  reals in $[0,1]$ which don't have $4$ in decimal expansion
100795
Limiting double to 3 decimal places