A drawing in TikZ.
The first picture draws an impossible brick, which induces
an optical illusion similar to that triggered by Escher's
The second picture draws a Penrose triangle, another similar
Beamer presentation template.
For a modified version of this theme where the circular progress indicator goes a complete cycle and the logo and background image can be changed, use this template instead.
These instructions give you guidelines for preparing papers for IFAC technical meetings. Please use this document as a template to prepare your manuscript. For submission guidelines, follow instructions on paper submission system as well as the event website.