Mathematics

Function Summary

The linear algebra functions are located in the MATLAB matfun directory.

Function Summary  

Category	Function	Description
Matrix analysis	norm	Matrix or vector norm.
	normest	Estimate the matrix 2-norm.
	rank	Matrix rank.
	det	Determinant.
	trace	Sum of diagonal elements.
	null	Null space.
	orth	Orthogonalization.
	rref	Reduced row echelon form.
	subspace	Angle between two subspaces.
Linear equations	\ and /	Linear equation solution.
	inv	Matrix inverse.
	cond	Condition number for inversion.
	condest	1-norm condition number estimate.
	chol	Cholesky factorization.
	cholinc	Incomplete Cholesky factorization.
	linsolve	Solve a system of linear equations.
	lu	LU factorization.
	luinc	Incomplete LU factorization.
	qr	Orthogonal-triangular decomposition.
	lsqnonneg	Nonnegative least-squares.
	pinv	Pseudoinverse.
	lscov	Least squares with known covariance.
Eigenvalues and singular values	eig	Eigenvalues and eigenvectors.
	svd	Singular value decomposition.
	eigs	A few eigenvalues.
	svds	A few singular values.
	poly	Characteristic polynomial.
	polyeig	Polynomial eigenvalue problem.
	condeig	Condition number for eigenvalues.
	hess	Hessenberg form.
	qz	QZ factorization.
	schur	Schur decomposition.
Matrix functions	expm	Matrix exponential.
	logm	Matrix logarithm.
	sqrtm	Matrix square root.
	funm	Evaluate general matrix function.

Matrices and Linear Algebra

Matrices in MATLAB

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