ELECTRONIC CALCULATORS seem to be a thing of the past at Dundee College’s Graham Street campus, where staff and students have been a bit mystified by some new graffiti—mathematical formulae.

Campus caretaker Wullie Tracey said, “I was around the east side of the building yesterday and there was nothing on the walls then, now it looks like some crazy Pythagoras fan has been showing off.”

He continued, “In fact, I’m quite pleased to see such complex work.

“It would indicate a much higher standard than appears on most public buildings—you could almost say that Dundee College graffiti is in a class of its own.”