Operational amplifiers notes

Invalid date

v2.2
Fixed a little bug closing the app when an empty number is entered in the edit dialog.
Improved layout.

v2.1
Added gain(s) according to the selected circuit (also values in dB)

v2.0
Added missing "sheet-like" styles to info
Added direct links to google play (to rate the app) and to the developer email

v1.3
Added calculation for non inverting summing amplifier configuration
Changed the spinner's style
Added result with more and bigger digits at the bottom