I am studying physics. I can’t even imagine a life with sin cos or tan… How do you guys perform a fourier transform without it?

You’re also technically using them if you merely play games. Edit: You also use cos when making or viewing a jpg, so the author of the meme did in-fact use at least cos on that day.

I don’t remember where, but I actually had to use some sin func for calculating something to play more efficient.