Metals fast calculator

Jan 10, 2016

Added:
- Fix some errors for Tab.
- Swipe from right to left, you clear the input fields;
- The possibility of mass transfer in length.
- Added built-in calculator.
- Added ability to select the length (mm or meters).
- Added ability to edit the list of materials as well as the temporary entry of arbitrary values of density.
- Added ability to save calculations.