Calctab
MC
MR
M+
M-
√
x²
1/x
AC
±
%
÷
7
8
9
×
4
5
6
-
1
2
3
+
0
.
=
×
How to Use Calctab
Numbers & Operations:
Click buttons or use keyboard.
Memory:
M+, M-, MR, MC for memory functions.
Copy:
"Copy Result" or 'C' to copy display value.
History:
"History" or 'H' to view past calculations.
Delete Entry:
Trash icon to remove a history entry.
Theme:
Toggle dark/light mode with moon/sun icon.
Clear:
"AC" or 'Escape' resets calculator.
Advanced:
√, x², 1/x, ±, % for more math.
Keyboard:
Digits, operators, Enter, Backspace.