On 3/20/2014 9:55 AM, Raffaele Cotza wrote: > Haw I can begin tu use PSRricks on my MacBook Air ? Not responding to the question you asked, but guessing you are attempting to use PSTricks to embed code for drawings in your TeX file, and since you are new to PSTricks, how did you come to select PSTricks as the language to create drawings in? Thanks, --Suresh