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Series · 33 lessons

Calculus: Derivatives

From continuity to inverse hyperbolic functions. Thirty-three short, interactive courses that build up the derivative one idea at a time.

  1. Continuity
  2. The derivative
  3. Differentiation rules
  4. Trigonometric functions
  5. Implicit differentiation & related rates
  6. Exponentials & logarithms
  7. Inverse & hyperbolic functions

Binary search

How many steps does it take to find one number in a billion? Halve the search space and discover the power of logarithms.

Bayes’ theorem

How should new evidence change your mind? Turn conditional probability into something you can see and understand.

Eigenvectors & eigenvalues

When a matrix transforms space, some vectors stay on the same line. Find them and discover the geometry behind the numbers.

Oscillation & resonance

How can a gentle push make a swing go higher? Adjust the driving frequency and discover when the response is strongest.

Breadth-first search

How do you find the shortest path through a network? Explore one layer at a time and watch the answer emerge.

Taylor polynomials

Trace complex curves with simple polynomials. Zoom in and out to discover where a local approximation holds up.

Lenz’s law

Which way does current flow as a magnet approaches a coil? Follow the changing magnetic flux to find out.

Derivatives & extrema

Does a zero slope always mean a peak? Follow a curve and connect its derivative to its maxima and minima.

Motion in a magnetic field

How does an invisible magnetic field bend a particle’s path? Follow the force to understand circular motion.

Two’s complement & overflow

How do computers represent negative numbers? Explore a world of limited bits and discover what happens when numbers overflow.

Solar elevation angle

Why is the equator hot and the poles cold? Tilt a beam of sunlight and watch the same energy spread over more ground.

Rain shadow

Why is one side of a mountain lush and the other a desert? Lift a pocket of air and follow its water vapor over the peak.

Lenz’s law