Meme of two women fighting while a man smokes from a pipe in the background.
The women fighting are labeled “mathematicians defining pi” and “engineers just using 3 because it’s within tolerance”
The man smoking is labeled “astrophysicists” and the pipe is labeled “pi = 1”
I just use the pi from my calculator or numpy/matlab. But I’m often too lazy for vacuum speed of light and use 3e8 m/s.