====== Set the number of points to draw a function ======
===== Problem =====
If you draw a function and zoom in, you see it is composed of straight lines connecting points. You can increase the number of points to solve this.

===== Do =====
<code>
TF1* func = new TF1("func","function", 0, 100);
func->SetNpx(myNumberOfPoints);
</code>
The default for ''myNumberOfPoints'' is 100.