And I don't really understand the "I didn't do math and Greek in School". I barely had a foreign language, but if you're actually learning the concept you memorize the letter as well. You can't understand what a wave function is and then not remember that its symbol is Psi. And if you don't know what a wave function is, it won't help to write derivate_2nd_order(waveFunction, time).
EDIT: obviously we're not talking about stories to teach newcomers, you're talking about writing equations in scientific articles and books with words.