The word Calculus comes from Latin meaning "small stone",
Because it is like understanding something by looking at small pieces.
Differential Calculus cuts something into small pieces to find how it changes.
Integral Calculus joins (integrates) the small pieces together to find how much there is.
Read Introduction to Calculus or "how fast right now?"
Limits are all about approaching. Sometimes you can't work something out directly, but you can see what it should be as you get closer and closer!
Derivatives (Differential Calculus)
The Derivative is the "rate of change" or slope of a function.
- Introduction to Derivatives
- Slope of a Function at a Point (Interactive)
- Derivatives as dy/dx
- Derivative Plotter (Interactive)
- Derivative Rules
- Second Derivative
- Partial Derivatives
- Finding Maxima and Minima using Derivatives
- Concave Upwards and Downwards and Inflection Points
- Implicit Differentiation
- Taylor Series (uses derivatives)
Integration (Integral Calculus)
Integration can be used to find areas, volumes, central points and many useful things.
- Introduction to Integration
- Integration Rules
- Integration by Parts
- Integration by Substitution
- Definite Integrals
- Arc Length
- Integral Approximations
- Solids of Revolution by Disks and Washers
In our world things change, and describing how they change often ends up as a Differential Equation: an equation with a function and one or more of its derivatives:
- Introduction to Differential Equations
- Separation of Variables
- Solution of First Order Linear Differential Equations
- Homogeneous Differential Equations
If you want more Calculus topics covered, let me know which ones.