Physics and engineering students looking at someone calling scientific calculator functions "useless"? *nervous laughter intensifies* 🧪 Those circled buttons (sin, cos, tan, log) are the bread and butter of anyone who's ever had to calculate the trajectory of a projectile at 2AM while questioning their life choices! Without them, we'd still be drawing triangles in the sand like cavemen with protractors! The real useless button is the one that turns the calculator on. Once you enter STEM, that thing never gets turned off. It becomes a permanent extension of your trembling, caffeine-fueled hand!