InverseFourier[list] finds the discrete inverse Fourier transform of a list of complex numbers.
DiagonalMatrix[list] gives a matrix with the elements of list on the leading diagonal, and 0 elsewhere. DiagonalMatrix[list, k] gives a matrix with the elements of list on ...
Mathematica incorporates the latest algorithms for solving industrial-scale linear systems, automatically switching between optimal dense and sparse algorithms—and handling ...
RSolve
(Built-in Mathematica Symbol) RSolve[eqn, a[n], n] solves a recurrence equation for a[n]. RSolve[{eqn_1, eqn_2, ...}, {a_1[n], a_2[n], ...}, n] solves a system of recurrence equations. RSolve[eqn, a[n_1, ...
FrameBox[box] is a low-level box construct which represents box with a frame drawn around it.
QuotientRemainder[m, n] gives a list of the quotient and remainder from division of m by n.
Mathematica has powerful capabilities for explicit signal processing with large volumes of data, imported and exported in many formats, and for symbolic analysis of signal ...
N
(Built-in Mathematica Symbol) N[expr] gives the numerical value of expr. N[expr, n] attempts to give a result with n-digit precision.
ArcCot
(Built-in Mathematica Symbol) ArcCot[z] gives the arc cotangent cot -1 (z) of the complex number z.