Students commented that he stressed suppleness, firmness, rhythmic exactitude and articulation. Later theorists Gioseffo Zarlino and Francisco de Salinas described the tuning with mathematical exactitude. Storms' work has been praised for demanding both artistic creativity and mathematical exactitude. This exactitude need not come at the expense of very disaggregated statements of hypotheses. The "choteo", doing away with exactitude, tends to depict the extreme limits of an example. While Shahn's "love for exactitude" is apparent in his graphics, so too is his creativity. The geographical location is given by Orvin as , with an exactitude of 1'. Money-prices are numbers, and numbers can be computed with exactitude. It was done with an ideal exactitude. More general books on art include "Impressionist Dreams" (1990) and "Exactitude&colon; Hyperrealist Art Today" (2009). He also questions the exactitude of what is meant by "recently"/"lately".