1-sum operation
2-product operation
3-division operation
4-changing number's sign
5-calculating logarithm of a number(on base 10)
6-calculating radical of a number
7-calculating factorial of a number
8-floating point numbers are handled
9-pi number is included
1-inverse number
2-calculates number to power of 2
3-calculates subtract of two numbers
4-Ln
5-e number
6-color of buttons changes whenever you hover through them
and so many other operations that will be added soon :)
