A confusing icon on Mather's UI

[b450mhdv]

@icasdri Hello, I found a problem with the app's UI design. When I open this app, I can see a small airplane-like widget in the lower right corner. But it is diffcult for me to imagine the function behind the widget. When I input some numbers and click on it, I found that it is the same as "=". In short, this widget can mislead users. For better user experience, could you fix this issue?

[ZaneHannanAU]

The = is define, not "show answer". It's evaluated.