Found on several maths humour sites. (I changed z to t so it works with more dialects of English.)
Integral t-squared dt From one to the cube root of three Times the cosine Of three pi on nine Equals log the cube root of e.
When procrastinating as an undergrad I’d occasionally compose limericks. Recently I found some in an old text file:
When one is writing a thesis, As the remaining time decreases, One eats and sleeps less And suffers so much stress That all rational thought just ceases.
Said the donut to the cup, "Isn’t it magnificent? Although we seem very different, From a topologist’s view I’m related to you, Because we’re homotopically equivalent."
I think I’ll need a lobotomy After all this algebraic topology, For every object I face Becomes a Hausdorff space, And I’ll compute its singular homology.
I don’t understand all of them anymore!