# Calculus

 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

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!

Introduction to Limits

Limits and Infinity

Evaluating Limits

Limits (Formal Definition)

## Derivatives (Differential Calculus)

The Derivative is the "rate of change" or slope of a function.

Introduction to Derivatives

Derivatives as dy/dx

Derivative Plotter

Derivative Rules

Second Derivative

Differentiable

Finding Maxima and Minima using Derivatives

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

## Differential Equations

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.