Length of number - formula
1715
Proof: How many digits does a number have? $\lfloor \log_{10} n \rfloor +1$
139588
Formulae for Catalan's constant.
40821
Number formation from given digits
19790
How to deal with recursion formula in Mathematica?
97357
How many elements in a number field of a given norm?
155362
Formula with dynamic number of variables
20548
General formula to obtain triangular-square numbers
151695
How to apply induction to this formula?
152623
How to get the length of a function in bytes?
61871
Formula for the $n$th term of $1, 2, 2, 3, 3, 3, 4, 4 ,4, 4, 5, ...$
78105
Is there any built-in way to get the length of an iterable in python?
122835
Lengths and when to use them
126734
Convert a number to its expression in words (e.g. 55 -> fifty-five)
77279
find the formula of trinomial expansion
137754
Is there a standard function in C that would return the length of an array?
40467
Intuition behind Hook Length Formula
149759
Problem on multiplication formulae.