Calc has long supported the useful ability to paste math expressions.

Success

1. Copy (2 + 2) * 4 to the clipboard
2. Paste into Calculator in Scientific Mode
3. Calculator displays "16"

Success

1. Manually type 2 ^ 8
2. Calculator displays "256"

Fail

1. Copy 2 ^ 8 to the clipboard
2. Calculator says Invalid Input

Expected behaviour of pastes should be same as manually typing the numbers.