Openscad : linear_extrude won't scale

Question

This simple code :

linear_extrude(height = 10, scale =2) { 
  circle(r = 1); 
}

create a cylinder instead of scaling the circle during the extrusion.

Result:

Answer 1

The code works fine with the latest release version (2015.03-2). I'd suggest to check the version of OpenSCAD you are running. It might be an old release which does not support the scale parameter.