rotfl

[rfc9000]

e^x and a constant were walking down the street. Suddenly, the constant notices a differential operator walking along the other side of the street. "Oh, no!" exclaims the constant. "I've got to run away! You've got to hide me! There's a differential operator... he could reduce me to nothing!" "Hmmmph," came the haughty reply. "I'm e^x. He can't do

Comments

[bluesmoon]

e^x is constant for d/dy since x is non-changing.

[colono]

Yeah misread d/dy as dx/dy. Blame it on my lack of sleep when reading it. Hence, was just writing a dumb comment. Btw, this has been slash-dotted earlier, with an integration version also doing rounds.