# teddy bears
x'=sin(y)-2*sin(x^2)*sin(2*y)
y'=-cos(x)-2*x*cos(x^2)*cos(2*y)
@ xp=x,yp=y,xlo=-6,ylo=-10,yhi=10,xhi=6
init x=-2.37,y=-10
@ total=30
# use x=1.63,y=10 to complete
done