Sicyon is a freeware sci/eng all-in-one software tool - expression calculator, constant database, unit converter, solver
SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
Calculator is a simple 4 function calculator.
Do maths like a normal person.
The calculator with the basic mathematical functions for pupils and students
Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad.
PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...
RealCalc Scientific Calculator
Get help and support for Windows —Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.
The built in Calculator on the iPhone.
Numi Organic Tea is a premium, Fair Trade sustainable company specializing in unique and innovative blends of green, black, white, oolong teas, Pu-erh, rooibos, herbal and Flowering Tea™.
The Collaborative Computational Notebook Built for Modern Engineering.