You've been using the iPad calculator for 25 years?
11 years longer than the iPad has been around?
The Calculator app has only just been added to iPadOS as part of iOS 18, which is currently in beta and not available to the general public.
So, either you're a time travelling magician, or you're talking nonsense.
Besides, these are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. These forums are NOT where Apple's actual developers chat about stuff.
If you want to make a suggestion for a future release, please do so at https://www.apple.com/feedback/