Certainly the most powerfull and efficient calculator on the net

online calculator => no installation and instantly available on any PC connected to the Internet

2 folders to fold/unfold with mathematical and advanced functions

enter the expression to calculate in the entry box and press Enter or click the button

Enter another expressions. They will be calculated and the previous one will scroll up

Use the character # for referencing the previous expression result.

Any operation allready calculated can be re-edited and recalculated. Linked expressions (with #) will be recalculated too

use the mathematical functions folder for quick reference

variable name can be used

your set of expressions is a user function that can be stored, shared and load again