Functions for constructing matrices. This generates a 2×2 matrix whose i,j^th entry is a[i,j]. Here is another way to produce the same matrix.

Gradient is an option for FindMinimum and related functions that specifies the gradient vector to assume for the function being extremized.

lhs =!= rhs yields True if the expression lhs is not identical to rhs, and yields False otherwise.

ListDeconvolve[ker, list] gives a deconvolution of list using kernel ker.

Eigenvalues and eigenvectors. The eigenvalues of a matrix m are the values λ_i for which one can find nonzero vectors v_i such that m.v_i λ_iv_i. The eigenvectors are the ...

Plain text file. Universal format for storage and exchange of textual information. Represents text as a sequence of characters and line separators. Stores characters as ...

Mathematica's unique structure allows a generalized notion of input, in which not only ordinary text, but also typeset structures, diagrams, graphics, control objects and ...

Everything that Mathematica does can be thought of as derived from its ability to apply general transformation rules to arbitrary symbolic expressions. The Mathematica ...

BitShiftRight[n, k] shifts the binary bits in the integer n to the right by k places, dropping bits that are shifted past the unit's position on the right. BitShiftRight[n] ...

$ByteOrdering gives the native ordering of bytes in binary data on your computer system.