Calculate A5E
Divination cantrip
You instantly know the answer to any mathematical equation that you speak aloud. The equation must be a problem that a creature with Intelligence 20 could solve using nonmagical tools with 1 hour of calculation. Additionally, you gain an expertise die on Engineering checks made during the duration of the spell.
Note: Using the calculate cantrip allows a player to make use of a calculator at the table in order to rapidly answer mathematical equations.
Source: Adventurer's Guide (EN Publishing) · License: Creative Commons Attribution 4.0 / OPEN GAME LICENSE Version 1.0a details