RJ Calculator is described as 'Scientific calculator with most basic functions like trigonometric functions, logarithms and base conversion. Also, statistic calculations like standard deviation and regression' and is an app in the education & reference category. There are more than 50 alternatives to RJ Calculator for a variety of platforms, including Windows, Android, Web-based, Linux and Mac apps. The best RJ Calculator alternative is Wolfram Alpha, which is free. Other great apps like RJ Calculator are SpeedCrunch, fxSolver, Numbat and Google Calculator.
Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
High precision scientific calculator with full support for physical units (web and terminal versions).
Calculator provides simple and advanced mathematical functions in a beautifully designed app.
Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!
Open-source calculator app with Windows Calculator features including standard, scientific, and programmer modes, plus unit and currency conversions. Available for macOS, Linux, Android, iOS, and web, with an intuitive interface for both desktop and mobile devices.
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.
Calculator++ is an advanced, modern and easy to use scientific calculator.
Calculator is an application that solves mathematical equations and is suitable as a default application in a GNOME Desktop environment.
RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing. Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the l.
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.
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