How to add calculation function to the keyboard?

[当时就吓哭了]

I like the fluency and novel functions of the original keyboard, but it can’t calculate quickly, so I have to switch the screen to the calculator. Because of my professional needs, I need quick calculations. This resulted in me having to use another keyboard. How can I use the calculation function in the keyboard? Or can Samsung add this function to the keyboard?

[GoanGeek]

How about putting your calculator on the edge panel. That way will be quick as well.

[ghosty]

Agree with GoanGeek, this works really well for me

[当时就吓哭了]

thank you so much