AbaCalc is a easy-to-use calculator. A professional calculator that you can use instead of the calculator that comes with your operating system.
The focus of this calculator is easy to view calculations (history) and easy to copy and paste functionality. All in all making AbaCalc one of the easiest calculators to use on the market today.
AbaCalc Features:
1. Copy and paste entire expressions
2. See previous calculations with answers
3. Can be used with the keyboard or mouse
4. Parenthesis
5. Hide keypads to save screen space
6. Cycle through previous expressions by using ctrl-up and ctrl-down
7. Resizeable fonts
8. Easy access from the taskbar
9. Thousands grouping separators can be typed in or pasted e.g. 1,000 + 2,000
10. Currency characters e.g. $5
11. Configure different currency characters
12. Trigonometry functions
13. Spaces and newlines
14. Comments within characters

The license of this software is Free Trial Software, the price is $4.57, you can free download and get a free trial.