_EigenDecomposition

it.grypho.scala.leonardo.matrix._EigenDecomposition

Eigenvalue decomposition: eigen(A) -- returns [[lambda_1, lambda_2, ..., lambda_n]].

Eigenvalues are _Number for real results and _Complex for complex conjugate pairs. Evaluates when A reduces to a square dense _MatrixValue via the QR iteration kernel; stays symbolic for non-square operands or when the iteration does not converge.

Does NOT extend _MatrixOperation because the result is not a matrix of Doubles (eigenvalues can be complex): it stays as Left(_Matrix(1, n, ...)) rather than collapsing to a single _MatrixValue.

Value parameters

m

the square matrix expression whose eigenvalues to compute

Attributes

Graph
Supertypes
trait Serializable
trait Product
trait Equals
trait _Expression
class Object
trait Matchable
class Any
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Members list

Value members

Concrete methods

override def children: List[_Expression]

Sub-expressions subject to recursive structural traversal. Binder positions (e.g. the differentiation variable) are excluded.

Sub-expressions subject to recursive structural traversal. Binder positions (e.g. the differentiation variable) are excluded.

Attributes

Definition Classes
override def eval(env: Environment): Either[_Expression, _Value]

Reduces this expression in the given environment.

Reduces this expression in the given environment.

Value parameters

env

variable bindings and display precision

Attributes

Returns

Right(v) when all free variables resolved to concrete values; Left(e) when reduction is partial or impossible

Definition Classes
override def rebuild(c: List[_Expression]): _Expression

Reconstructs the same node shape with replacement sub-expressions.

Reconstructs the same node shape with replacement sub-expressions.

Value parameters

newChildren

replacements in the same order and count as children

Attributes

Definition Classes
override def toString: String

Returns a string representation of the object.

Returns a string representation of the object.

The default representation is platform dependent.

Attributes

Returns

a string representation of the object.

Definition Classes
Any

Inherited methods

def productElementNames: Iterator[String]

Attributes

Inherited from:
Product
def productIterator: Iterator[Any]

Attributes

Inherited from:
Product

Inherited fields

lazy val freeVars: Set[String]

Cached set of free variable names; O(1) after the first access.

Cached set of free variable names; O(1) after the first access.

Attributes

Inherited from:
_Expression