Painfully relatable :). In a similar vein, Google's Calculator app for Android and ChromeOS doesn't allow you to input parentheses (there's no button for it, despite there being three "pages" of buttons, and it mysteriously does not allow you to paste them into the input field).
Oh yes, that's the other Android calculator. The one in which you can't arbitrarily edit the input field, only backspace from the right. Especially frustrating when modifying expression with parentheses.
