Interval (Built-in Mathematica Symbol)

Interval[{min, max}] represents the range of values between min and max. Interval[{min_1 , max_1}, {min_2 , max_2}, ...] represents the union of the ranges min_1 to max_1, ...

InverseBetaRegularized (Built-in Mathematica Symbol)

InverseBetaRegularized[s, a, b] gives the inverse of the regularized incomplete beta function.

InverseGammaRegularized (Built-in Mathematica Symbol)

InverseGammaRegularized[a, s] gives the inverse of the regularized incomplete gamma function.

KelvinBei (Built-in Mathematica Symbol)

KelvinBei[z] gives the Kelvin function bei(z).KelvinBei[n, z] gives the Kelvin function bei_n (z).

KelvinBer (Built-in Mathematica Symbol)

KelvinBer[z] gives the Kelvin function ber(z).KelvinBer[n, z] gives the Kelvin function ber_n (z).

KelvinKei (Built-in Mathematica Symbol)

KelvinKei[z] gives the Kelvin function kei(z).KelvinKei[n, z] gives the Kelvin function kei_n (z).

KelvinKer (Built-in Mathematica Symbol)

KelvinKer[z] gives the Kelvin function ker(z).KelvinKer[n, z] gives the Kelvin function ker_n (z).

KroneckerDelta (Built-in Mathematica Symbol)

KroneckerDelta[n_1, n_2, ...] gives the Kronecker delta \[Delta] Subscript[n, 1] Subscript[n, 2] ..., equal to 1 if all the n_i are equal, and 0 otherwise.

Log2 (Built-in Mathematica Symbol)

Log2[x] gives the base-2 logarithm of x.

MachinePrecision (Built-in Mathematica Symbol)

MachinePrecision is a symbol used to indicate machine-number precision.