"trigrat" caught in infinite loop - depending on how you call it



On 11/15/2012 12:48 PM, Jaime Villate wrote:
> show similar plots, except from a couple of wholes near (x,y)=(3,1) 
> and (2,4)
or for a closer, look, avoiding the atan(0,0) discontinuities:

plot3d(e,[x,0,5],[y,0.1,5],[z,0,1]);
plot3d(trigrat(e),[x,0,5],[y,0.1,5],[z,0,1]);