7Calc is a Desktop Gadget expression calculator for Windows 7. It is the spiritual successor to the original Supecalc program. 7Calc is implemented as a Desktop Gadget, which means that it can be docked to the side of your desktop.

## Programmer Mode

7Calc allows full C-style expressions and uses integer maths to evaluate expressions, providing the same results that would be produced by a native C++ program.

Results can be displayed as Binary, Decimal or Hexadecimal, and in Signed or Unsigned formats.

## Scientific Mode

Scientific mode uses floating-point maths to evaluate the expressions typed into 7Calc. This allows a greater level of precision that programmer mode. Results can be displayed in Exponential or Fixed-point format.

## Fraction Mode

Fraction mode evaluates all expressions as if they were fractional numbers, thereby preserving accuracy. Numbers can be displayed as Rational, or Irrational fractions.

## Sourcecode available on github

7Calc is hosted on github.com under the MIT licence