Firmware 2021: Problem with exact polar form

[compsystems]

In Home mode, I found the solution: you must put a comma before the Unicode angle symbol

(√ (2), ∡ (3 * (π / 4)))

For those of us who work in the field of teaching circuits in electrical and electronic engineering, we use the option of complex numbers in polar form a lot, is also difficult to remember to place the comma before the angle symbol, for this reason it is very useful to have a template for this purpose. Who else has to enter complex numbers in polar format?

Another useful template is CEILING ⌈▣⌉ AND FLOOR ⌊▣⌋, widely used in algorithmic