Two professors are at a restaurant, arguing about the state of education today. "Nobody learns calculus anymore," lamented the first. "That's not true," replied the second, "it's part of the freshman curriculum."
"Okay, I'll tell you what," offered the first professor, "we'll ask the waitress a simple calculus question; if she gets it right, lunch is on me." The second professor agreed, but said, "But give me a minute, I have to use the bathroom, first."
So the second professor gets up and heads toward the restrooms. Before he gets there, though, he finds the waitress and says, "This may seem weird, but my colleague is going to ask you a question. When he does, I want you to say, 'x cubed over three', okay?" The waitress agrees, and the second professor returns to the table.
After a couple minutes, the waitress comes by to ask if everything is okay. The first professor asks her, "My friend and I were just discussing whether or not people bother to learn calculus anymore. Can you tell me, what's the integral of x squared?"
Dutifully, the waitress answers, "x cubed over three."
"Well I'll be, I guess you were right!" exclaims the first professor, "Looks like lunch is on me!"
Walking away, the waitress is heard to say, "Plus a constant..."
Source: rec.humor.funny (Geez, I'm old!)
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