# Scientific Calculator 300 Plus Alternatives

Scientific Calculator 300 Plus is described as 'Scientific calculator 300 plus, 991 is the calculator for students and engineering student. Calculator 991 plus provides powerful functions in a real calculator 991 300 . It makes advanced calculator 991 become the most useful calculator for university and school' and is a Calculator in the Education & Reference category. There are more than 10 alternatives to Scientific Calculator 300 Plus for a variety of platforms, including Android, Android Tablet, Windows, Linux and Online / Web-based. The best alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Scientific Calculator 300 Plus are Qalculate! (Free, Open Source), Windows Calculator (Free, Open Source), fxSolver (Free) and Calculator (Free).

- SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited Variables, Syntax Highlighting, Functions, with 'Automagic' Completion, 50 Decimal...
- Free • Open Source
- Mac
- Windows
- Linux
- PortableApps.com

- Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).
- A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.
- Online math solver, equation library, graphing calculator and science/engineering problem helper.
- Calculator provides simple and advanced mathematical functions in a beautifully designed app.
- RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing.
- Scientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.
- Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop.
- A multipurpose calculator app with slick and intuitive user interface. Access additional features from the main screen of the app using gestures. It has a big variety of built-in functions and supports adding new user-defined functions.
- Free42, an HP-42S calculator simulator Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer. It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.