Spring 2007	MAPLE commands for MATH 121
	Command	Meaning	Syntax	Example
	:=	is defined to be	name := expression;	f := x^2;
	;	end of statement	statement;	f;
	?	get help	? keyword	? subs
	plot	curve plotting	plot(expression,variable=range);	plot(x^2,x=1..3);
	->	defines a function	fname:=variable->expression;	f:=x->x^2;
	solve	solve an equation	solve(equation,variable);	solve(x^2=2,x);
	fsolve	solve for a decimal value	fsolve(equation,variable=range);	fsolve(x^2=2,x=1..2);
	subs	substitute into an expression	subs(equation,expression);	subs(x=7,x^2);
	evalf	approximate as a decimal	evalf(expression);	evalf(sqrt(2));
	simplify	simplify	simplify(expression);	simplify(cos(Pi)+1);
	diff or Diff	differentiate	diff(expression,variable);	diff(x^2,x);