It uses a different approach from a conventional calculator, which is more
natural to the way people calculate. When you calculate on a conventional
calculator, each time you enter a new number you lose sight of the previous
one. And if you make a mistake in the middle of a long expression, you have
to start all over. In Calcsharp, you can see all of what you are calculating,
and expressions can easily be edited and saved.

Features:
- Evaluate mathematical expressions step by step
- Large number of built-in functions and operators
- Large number of predefined mathematical and physical constants
- Support for fractions
- Supports for decimal, hexadecimal, octal and binary numbers
- Works with "Infinity" and "Not-a-number"
- Three kinds of parentheses
- Unlimited size of expressions
- Unlimited depth of nesting
- Expression builder
- Expression history
- Three different chalkboard background (green, blue and black)