Specifies how many digits in a given integer.
Example: in=100 ==> out=3
Add tests with 100,1000...
Solutions with ceil are wrong.
The Goldbach Conjecture
Project Euler: Problem 8, Find largest product in a large string of numbers
Symmetry of vector
Volume of a box
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office