Calculist - The open-source, web-based thinking tool that facilitates effective thinking for solving problems.
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 .
Bl.ocks - Simple viewer for sharing code examples hosted on GitHub Gist.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
Carbide - A new kind of programming environment
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.