evalf( ) converts to decimal
syntax for naming functions nameOfFunction :=x-> definition of Function
@ symbol for composition
plotting graphs
basic plot plot(f(x),x)
control domain plot(f(x),x=2..6)
plot two functions plot({f(x),g(x)}, x=2..6)
control range plot(f(x), x=2..6, y=-3..5)
factor( )
simplify( )
limit(f(x),x=a)
solve(g(x) = 0, x)
fsolve(g(x) = 0, x)