Quickly reviewed mathematical functions, they’re pretty straight forward, but its good to keep a list. And MDAS (*multiply *, divide /, addition +, subtraction –, in order*) applies… and for some reason I skipped this at school and went straight to brackets; so I occasionally get confused.

Then we have a *single equal =*, which assigns a variable to a name. And the

*double equals*

**which means**

*==**equivalent*; so that’s what we’ll use for the math stuff. Also,

*more than*. Notice the equal sign

**>**, less than**<**, more than or equal to**>=**, less than or equal to**<=**, and not equivalent to**!=****=**, always comes second.

It’s also possible to shorten code, for example, i = i + 1 becomes i++.

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