Assert
(Built-in Mathematica Symbol) Assert[test] represents the assertion that test is True. If assertions have been enabled, test is evaluated when the assertion is encountered. If test is not True, then an ...
Catalan
(Built-in Mathematica Symbol) Catalan is Catalan's constant, with numerical value \[TildeEqual] 0.915966.
EulerGamma is Euler's constant \[Gamma], with numerical value \[TildeEqual] 0.577216.
FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.
GoldenRatio is the golden ratio \[Phi] = 1/2 (Sqrt[5] + 1), with numerical value \[TildeEqual] 1.61803.
Pi
(Built-in Mathematica Symbol) Pi is \[Pi], with numerical value \[TildeEqual] 3.14159.
Rational is the head used for rational numbers.
Round
(Built-in Mathematica Symbol) Round[x] gives the integer closest to x. Round[x, a] rounds to the nearest multiple of a.
Sec
(Built-in Mathematica Symbol) Sec[z] gives the secant of z.
Symbol
(Built-in Mathematica Symbol) Symbol["name"] refers to a symbol with the specified name.