Version 2

Added features:

1. v1.1 - Exit command
2. v1.2 - Personalization update
3. v1.3 - Clear terminal
4. v1.4 - Copy answer
5. v1.5 - personalization
6. v1.6 - version print
7. v1.7 - save history
8. v1.8 - clear history command
9. v1.9 - color update
10. v2.0 - Circles update - Semicircle area

Full Changelog: v1.0...v2.0

Version 1

Added features:

1. 5 second sleep timer after calculating.
2. Redirect to main menu after calculating.
3. Number only input.