Qalculate! Portable is a user-friendly yet powerful math software with practical tools like currency conversion and percent calculation.

Qalculate! Portable offers a user-friendly interface, a vast library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, and plotting.

Qalculate! Portable offers an expression entry method that allows you to input mathematical expressions naturally, just as you would write them on paper. Once you hit Enter, you're all set. The interpretation of mathematical expressions is lenient and can handle mistakes. However, if you enter an expression that is not fully recognized or is ambiguous, Qalculate! will provide a subtle warning or error with helpful information. If an expression cannot be entirely solved, Qalculate! Portable will simplify it as much as possible and respond.

In the program, expressions can include variables, units, functions, numbers, and arithmetic operators. These can be easily accessed through the user interface by utilizing the automatic completion feature or navigating the menu bar, object managers, or calculator keypad.

Qalculate! Portable also provides several specific tools for your convenience, such as a number-based conversion dialog and a simple plotting interface.

While Qalculate! Portable is designed for simple calculations; it's still helpful to review the manual as it contains valuable information.

Qalculate! Portable includes numerous features that can be viewed in their entirety here.

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