Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
- Calculator
- Free • Proprietary
- Online
+8Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?
- Calculator
- Paid • Proprietary
- Mac
- iPhone
- iPad
+14Numbr is a currency calculator, a notepad that understands your calculation. You can use notes with numbers alongside each other. And all your numbers are instantly calculated as you type.
- Calculator
- Free • Open Source
- Online
- Chrome OS
Napkin is a unique mix between a notepad and a calculator. Doing quick calculations on your phone has never been easier!
- Calculator
- Free • Proprietary
- Android
- Android Tablet