The Expressions Calculator 4+

ExpressionsCalculator is a multifunction scientific calculator offering a wide range of features specific for anyone looking from basic to advanced calculations. It is an ideal tool optimised for high-school and STEM university students, chemists, engineers, mathematicians and physicists.

ExpressionsCalculator is revolutionary in the way it helps you solve problems by providing you, in addition to all the basic features of a calculator, a rich sample of natural constants, a large database of commonly used formulae in mathematics, physics and chemistry, all this in a fully embedded and aware SI (MKSA), imperial (foot, pound, …) and astronomical (ly, parsec, …) units context. Hence, in ExpressionsCalculator a physical quantity has a unit. When you perform calculations, units are always taken care of and automatically simplified to provide the most sensible result. Derived units such as Newton, Joule, etc. are handled. Conversions from one unit to others are automatic. In addition, ExpressionsCalculator can also handle multi-dimensional vectorial quantities.

Here is a short overview of the other main features of ExpressionsCalculator:
- Arithmetics on integers, rational and floating numbers
- Handles very large and very small numbers (arbitrary precision arithmetic on integers)
- Extended floating point range
- Fully embedded handling of units
- Large set of available units (SI, imperial)
- Handles angles in both degrees and radians
- Full calculations with units
- Automatic conversion of units
- Vector algebra (+,-, scalar and vector products)
- Comprehensive list of natural constants with their proper units
- Comprehensive list of astronomical constants with their units
- Full periodic table with lots of properties for each element
- List of refractive indices of many materials
- Fully assignable constants with extended naming possibilities
- An extensive database of Expressions encompassing most commonly used formulae in mathematics (geometry, vectors), physics (kinematics, dynamics, thermodynamics, special relativity, atomic physics) and chemistry.

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Chat mode:
- try a different way to perform calculations and respond to query
- access ChatGPT to increase your productivity, get rapid responses to your queries(*)
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(*) Access to ChatGPT requires an in-app subscription.

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