To there'll be some changes made.

You take a function of x and you call it y,
Take any x-nought that you care to try,
You make a little change and call it delta x,
The corresponding change in y is what you find nex',
And then you take the quotient and now carefully
Send delta x to zero, and I think you'll see
That what the limit gives us, if our work all checks,
Is what we call dy/dx,
It's just dy/dx.

• Everybody Eat
• I Got It from Agnes
• L-y
• Silent E
• Thanksgiving
• That's Mathematics
• The Derivative Song
• The Professor's Song
• There's a Delta for Every Epsilon