> # Maple sucks, well only slightly more that other software.
> # Maple crashes, save early and often
> # Maple does not re-execute commands when it loads
> # Maple thinks you know what you are doing, it echos commands it does not understand
> implictplot3d(x+y+z=1,x=0..2,y=0..2,z=0..2,title=`Command not found`);

implictplot3d(x + y + z = 1, x = 0 .. 2, y = 0 .. 2, z = 0 .. 2,

    title = Command not found)

> # Maple is very picky about syntax
> # syntax 1, commands that don't end until either a `;' or a `:' appear
> 2+2
> 
Warning, premature end of input
> 2+2;

                                  4

> # syntax 2, `:' makes Maple silent
> 2+2:
> # syntax 3. Maple can't figure out 3x or xy or x y or x(y)
> 3x;
missing operator or `;`
> 3*x;

                                 3 x

> xy;

                                  xy

> x*y;

                                 x y

> # syntax 4. Maple uses `:=' for assignment, and `=' for equations.
> a:=2;

                                a := 2

> b:=3;

                                b := 3

> a*b;ab;

                                  6


                                  ab

> solve({x+y=7,x-y=5});

                            {y = 1, x = 6}

> eqn:={x^2+y^2=4,(x-3)^2+y^2=4};

                        2    2             2    2
               eqn := {x  + y  = 4, (x - 3)  + y  = 4}

> solve(eqn);

                                             2
                  {x = 3/2, y = 1/2 RootOf(_Z  - 7)}

> # Maple sometimes gives ugly answers. The above is another way of writing plus/minus sqrt(7)
> allvalues(solve(eqn));

       {x = 3/2, y = 1/2 sqrt(7)}, {x = 3/2, y = - 1/2 sqrt(7)}

> # f(x):=x^2; does not work, instead use f:=x->x^2;
> f(x):=x^2; f(2); f(t);

                                       2
                              f(x) := x


                                 f(2)


                                 f(t)

> f:=x->x^2; f(2); f(t);


                                  4


                                   2
                                  t

> #Maple is too smart for its own good. Both expressions and functions work in many places.
> plot(x^2,x=-1..1);plot(f(x),x=-1..1);
> # Syntax it is Pi and not pi
> pi;Pi;evalf(pi);evalf(Pi);

                                  pi


                                  Pi


                                  pi


                             3.141592654

> # Syntax the is no e or E, instead do
> e:=exp(1);e^2;evalf(e^2);

                             e := exp(1)


                                     2
                               exp(1)


                             7.389056096

> #but it can draw some pretty pictures
> f:=(x,y)->x^3-3*x*y^2;

> plot3d(f(x,y),x=-3..3,y=-3..3,title=`monkey saddle`);
> #it can integrate like a champ
> int(int(f(x,y),x=0..3),y=0..3);

                                -243/4

> # check answers
> subs({x=1,y=1}, eqn);

                            {2 = 4, 5 = 4}

> subs(allvalues(solve(eqn))[1],x^2+y^2);

                                  4

> #Maple lies!
> a:=2;

                                a := 2

> a+a;

                                  5

> a;

                                  2

>