HarwellBoeing (Mathematica Import/Export Format)

Harwell\[Dash]Boeing matrix format. Used for exchanging and storing sparse matrices. Plain text format. File format of the Harwell\[Dash]Boeing collection of standard test ...

MTX (Mathematica Import/Export Format)

Matrix Market matrix format. Used for exchanging and storing test matrices. Plain text format. File format of the NIST Matrix Market collection of standard test matrices. ...

AffineTransform (Built-in Mathematica Symbol)

AffineTransform[m] gives a TransformationFunction that represents an affine transform that maps r to m.r. AffineTransform[{m, v}] gives an affine transform that maps r to m.r ...

Cross (Built-in Mathematica Symbol)

Cross[a, b] gives the vector cross product of a and b.

Equivalent (Built-in Mathematica Symbol)

Equivalent[e_1, e_2, ...] represents the logical equivalence e_1 \[DoubleLeftRightArrow] e_2 \[DoubleLeftRightArrow] ..., giving True when all of the e_i are the same.

IdentityMatrix (Built-in Mathematica Symbol)

IdentityMatrix[n] gives the n*n identity matrix.

MonomialList (Built-in Mathematica Symbol)

MonomialList[poly] gives the list of all monomials in the polynomial poly.MonomialList[poly, {x_1, x_2, ...}] gives the list of monomials with respect to the variables x_i in ...

SymmetricMatrixQ (Built-in Mathematica Symbol)

SymmetricMatrixQ[m] tests whether m is a symmetric matrix.

Tr (Built-in Mathematica Symbol)

Tr[list] finds the trace of the matrix or tensor list. Tr[list, f] finds a generalized trace, combining terms with f instead of Plus. Tr[list, f, n] goes down to level n in ...

Constructing Matrices (Mathematica Tutorial)

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.