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.

Mathematica 6.0 represented a major new level in Mathematica's distinguished twenty-year history of broad cutting-edge algorithm development. Mathematica's unified ...

WhittakerM[k, m, z] gives the Whittaker function M k, m (z).

RamanujanTauZ[t] gives the Ramanujan tau Z-function Z(t).

Xnor[e_1, e_2, ...] is the logical XNOR (not XOR) function. It gives True if an even number of the e_i are True, and the rest are False. It gives False if an odd number of ...

Annuity[p, t] represents an annuity of fixed payments p made over t periods.Annuity[p, t, q] represents a series of payments occurring at time intervals q.Annuity[{p, ...

Delete[expr, n] deletes the element at position n in expr. If n is negative, the position is counted from the end. Delete[expr, {i, j, ...}] deletes the part at position {i, ...

The precise details of the naming of files differ from one computer system to another. Nevertheless, Mathematica provides some fairly general mechanisms that work on all ...

To control how a 3D surface responds to simulated light, set its reflection properties. Mathematica lets you control the diffuse reflection of light on a matte surface and ...

Mathematica 's built-in spell checker includes the ability to customize spelling dictionaries both permanently and for individual notebooks.