A formula used to calculate the nth digit of pi in base 2.

plural of molecular formula

(chemistry) A notation indicating the ratios of the various elements present in a compound, without regard to the actual numbers.

(chemistry) A notation indicating the number of atoms of each element present in one molecule of a substance.

(chemistry) The molecular formula of a class of compounds in which actual numbers are represented by x, n etc., and organic radicals are represented as Rₙ

Any algebraic expression that gives the distance between two points in a particular coordinate system in a particular number of dimensions

The highest class of motor racing sanctioned by the FIA.

(inorganic chemistry) An empirical formula of an ionic compound (that does not possess individual molecules) for use in stoichiometric calculations

(logic) A formula which has no free occurrences of variables; or equivalently, in which all occurrences of variables are bound.

(mathematics) An infinite product of nested radicals representing the constant pi: specifically, 2/𝜋=(√2)/2·√/2·√/2⋯