Donald Truhlar deliberately misunderstood the “aug-” (“A-U-G”) label for these mathematical expressions to build a calendar of them prefixed “jun-” (“june”) and “jul-” (“juul”). The popular def2 set of these expressions (-5[1])are collectively named for the city of Karlsruhe (10[2])(“KARLS-roo-uh”). When the primitives (10[1])in contracted examples of these expressions overlap, an eigen·value problem is solved using the Roothaan (“ROH-tawn”)–Hall algorithm. These formulas are most accurate when the radial terms are written as “r times e to the negative zeta (10[1])r,” but they are much easier to work with if the exponential is “negative zeta r squared.” (10[1])Modern examples of these expressions (-5[1])like 6-31G* (10[1])(“six dash thirty-one G star”) include (-5[1])polarization functions to account for electronic correlation. (10[2])Coefficients in these expressions are computed through variational methods (-5[1])like Hartree–Fock. (10[1]-5[4])For 10 points, name these combinations of atomic (-5[1])or Slater-type (-5[2])orbitals (-5[1])that span (-5[1])the space of molecular wavefunctions. (10[1])■END■ (10[1]0[7])