Maple 9 Learning Guide - Maplesoft

2.4 Assigning Expressions to Names • 19> term := x*y;term := x yYou can assign equations to names.> eqn := x = y + 2;eqn := x = y + 2Guidelines for Maple NamesMaple names can include any alphanumeric characters and underscores,but they cannot start with a number. Do not start names with an underscorebecause Maple uses these names for internal classification.• Examples of valid Maple names are polynomial, test_data, RoOt_lOcUs_pLoT,and value2.• Examples of invalid Maple names are 2ndphase (because it beginswith a number) and x&y (because & is not an alphanumeric character).Maple Arrow Notation in Defining FunctionsDefine functions by using the Maple arrow notation (->). This notationallows you to evaluate a function when it appears in Maple expressions.You can do simple graphing of the function by using the plot command.> f := x -> 2*x^2 -3*x +4;f := x → 2 x 2 − 3 x + 4> plot (f(x), x= -5..5);70605040302010–4 –2 0 2 4x