Complex is the head used for complex numbers.

FlattenAt[list, n] flattens out a sublist that appears as the n\[Null] th element of list. If n is negative, the position is counted from the end. FlattenAt[expr, {i, j, ...

BitXor[n_1, n_2, ...] gives the bitwise XOR of the integers n_i.

LinearRecurrence[ker, init, n] gives the sequence of length n obtained by iterating the linear recurrence with kernel ker starting with initial values ...

Mathematica has immedate built-in access to extensive scientific and technical data—all carefully curated and updated at Wolfram Research.

A three-dimensional coordinate system assigns three numbers to each point in space. In defining a coordinate system, you have to make a choice about what to measure and how ...

The Developer Utilities Package includes functions that directly access specific internal algorithms and capabilities of Mathematica that are normally used only as part of ...

Orthogonalize[{v_1, v_2, ...}] gives an orthonormal basis found by orthogonalizing the vectors v_i.Orthogonalize[{e_1, e_2, ...}, f] gives a basis for the e_i orthonormal ...

Mathematica's symbolic representation of both graphics and controls makes it particularly easy to create click-interactive panels in which the user clicks or drags elements ...

FittedModel[...] represents the symbolic fitted model obtained from functions like LinearModelFit.