Getcalc
Jim
Insect
errProof
RANDOM.ORG
SpeedCrunch
Video DownloadHelper
Qalculate!
fxSolver
SpeedCrunch
WolframAlpha
Qalculate!
Numi App
Soulver
Wolfram Mathematica
MATLAB
Calculate multiple equations at once, Edit existing formulas and Create new ones, Compute large numbers of values, Plot graphs, Link your results, Solve full problems and Share worksheets with your friends.
fxSolver is a free tool developed by a team of engineers and programmers with the sole intention of providing a unique, useful and free service. The vision of the development team is to allow students, engineers, and hobbyists to come in contact with mathematics and to be able to solve problems without necessarily being familiar with professional math software or programming languages.
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Jim - An overview of Jim capabilities
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
Insect - High precision scientific calculator with full support for physical units.
WolframAlpha - WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.
errProof - The website has a lot of useful and unique tools.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.