Mathematica Programming
Mathematica Functions
get usage information about a Mathematica function
Dynamic
StringTrim
find options for a function
Dynamic options
look up information about functions
Graphics function version history
find groups of functions
mathematica plotting functions
mathematica commands having Constant attribute
Functional Programming
use functional programming constructs such as Map
sin /@ {pi/6, pi/5, pi/4, pi/3, pi/2, pi}
use pure functions