And Differential Calculus and Integral Calculus are like inverses of each other, similar to how multiplication and division are inverses, but that is something for us to discover later!

The word Calculus comes from Latin meaning small stone, because it is like understanding something by looking at small pieces.

Sometimes we cant work something out directly ... but we can see what it should be as we get closer and closer ... Lets work it out for x=1

It is all about slope! Slope = Change in Y / Change in X. We can find an average slope between two points. But how do we find the slope at a point?

Integration is a way of adding slices to find the whole. Integration can be used to find areas, volumes, central points and many useful things.

In simple terms these are the fundamental theorems of calculus: Derivatives and Integrals are the inverse (opposite) of each other.

LHpitals Rule can help us calculate a limit that may otherwise be hard or impossible. ... LHpital is pronounced lopital. He was a French mathematician from the 1600s.

You might like to read Introduction to Integration first! Integration can be used to find areas, volumes, central points and many useful things.

A Differential Equation is an equation with a function and one or more of its derivatives: Example: an equation with the function y and its...

Sometimes we can't work something out directly ... but we can see what it should be as we get closer and closer!