Spar (retailer) throughout Asia, Africa and Oceania. In fiscal year 2017, SPAR achieved €34.5 billion ($40.1 billion) in global sales, which represented a 5.3 percent increase over 2016. The SPAR motto is "under the tree" The name was originally DE SPAR, an acronym of the Dutch phrase (). The acronym was chosen in order to resonate with the verb "sparen", which (related to English "spare") means "save [money]" in Dutch and some other languages, among them German and Scandinavian languages (with variants such as "spara" or "spare"). The acronym ended up meaning "the fir", after which the logo was chosen. As the
Hyperbolic tree trees employ hyperbolic space, which intrinsically has "more room" than Euclidean space. For instance, linearly increasing the radius of a circle in Euclidean space increases its circumference linearly, while the same circle in hyperbolic space would have its circumference increase exponentially. Exploiting this property allows laying out the tree in hyperbolic space in an uncluttered manner: placing a node far enough from its parent gives the node almost the same amount of space as its parent for laying out its own children. Displaying a hyperbolic tree commonly utilizes the Poincaré disk model of hyperbolic geometry, though the Klein-Beltrami model can