Representation
Base converter
Rewrite an integer in any base from 2 to 36, with the decimal value shown alongside.
Digits run 0-9 then a-z. A leading minus sign is kept.
Try
- base 10255 base 10
- 255
- base 16255 base 10
- FF
Calculators
Six discrete math calculators
Interactive discrete math for CS students: topics, proof trainer, practice, and browser-native tools.
- No account needed
- Nothing leaves your browser
- Works offline
What is in here
7topics
534problems
54formulas
60proof tasks
Calculators
Discrete math tools
Six calculators that run entirely in this browser. Inputs are validated, so a rejected entry says what is wrong instead of returning a confident wrong answer.