fxSolver
WolframAlpha
SpeedCrunch
Qalculate!
Numi App
Wolfram Mathematica
Symbolab
Soulver
SQLAPI++
Abstract Database Connector
CppDB - SQL Connectivity Library
dotConnect
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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WolframAlpha - WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of peopleโspanning all professions and education levels.
Abstract Database Connector - Abstract Database Connector is a C/C++ library for making connections to several databases (MySQL...
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 Donateย .
CppDB - SQL Connectivity Library - CppDB is an SQL connectivity library that is designed to provide platform and Database independent connectivity API similarly to what JDBC, ODBC and other connectivity libraries do. http://cppcms.com/sql/cppdb/
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
dotConnect - Ultimate solution for developing data-related .NET applications