Update: The live music started tonight.
The Square Root opened today at Corinth Street and Belgrade Avenue, serving, for now, a limited menu of coffees and baked goods.
The place will gradually expand its menu to include craft beer and wine as it stays open until 1 a.m. with live night-time performances. The owners are also leasing the space above the coffeehouse for use as a co-working space.
The Square Root is a few blocks away from the Green T coffeehouse at South and Walter streets - and around the corner from the impending Distraction Brewing Co. brewery.