
And in an effort to reduce awkwardness
as we learn how to FUNCTION as friends,
The Big Bang Theory Season 9, Episode 9

Guess a wave FUNCTION and vary its parameters
until I found the lowest energy solution.
The Big Bang Theory Season 8, Episode 2

They can't FUNCTION without me.
The Big Bang Theory Season 4, Episode 3

when the wave FUNCTION collapses?
The Big Bang Theory Season 10, Episode 19

I feel like an inverse tangent FUNCTION
that's approaching an asymptote.
The Big Bang Theory Season 2, Episode 13