# definition of functions and points. To be taken randomly.
# Format:
# line 1 = computing formula
# line 2 = presentation formula
# line 3 = computing interval
# line 4 = plotting interval(s)
# line 5 = list for a1 ( x coordinate of p )
# line 6 = list for a2 ( y coordinate of p )
# line 7 = list for a3,...

:$a3*cos($$x/$a4)
 $a3*cos(x/$a4)
 -3*$a4, 3*$a4
 -5*$a4, 5*$a4, -$a3-2, $a2+2
 -3,-2,-1,2,4
 7,9,10,11,13
 2,3,4,5,6
 2,3,5
:$a5*exp($a3*$$x+$a4)
 $(a5)exp($(a3)x+$a4)
 -10, (3-$a4)/$a3
 -10,$a1+2,-5,5
 1,3,5,6,7,8
 1,-1,0,2,-2,3,-3
 2,3,4
 1,2,3
 2,-2,3,-3
:$a3*$$x^2+($$x/$a4)+($a5)
 $(a3)x<sup>2</sup>+x/$a4+$a5
 -5,5
 -abs($a1)-1,abs($a1)+1,$a2-2,15
 -5,-4,-3,-2,-1,1,2,3,4,5
 -2,-1,1,2
 3,4,5
 3,5,6
 3,6,7
:$a3/($$x^2+$a4)
 $a3/(x<sup>2</sup>+$a4)
 1,10
 -$a1-4,$a1+4,$[$a3/$a4]-2,$a2+2
 1,2,3,4,5,6
 1,2,3,4
 -40,-41,-45,-46,-49
 7,8,9,10,11,12,13

