Jan 24, 2016

4.0.1:
- The new task “Operations with decimals” has been added
- Some critical bugs were fixed.
4.0.0:
- Total redesign
- New Problems
- Total bugfixing
3.1.5:
- Added two languages
- Fixed some graphics issues
3.1.4:
- Critical bugfixes
3.1.3:
- Critical bug fixed
- Improved Limits and Integration functions (in full version)
- Usability improvements and bugfixes (19+ bugs fixed)