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 .
Precise Calculator - Free programmable scientific calculator for Windows; solve math problems, algebra, statistics examples and tutorial
PCalc - PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...
OpalCalc - OpalCalc is a brand new type of calculator for the PC.
Google - Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
handyCalc - Solve things in your hand.