Type:
Class
Constants:
SELECTORS : {all: true, diagonal: true, off_diagonal: true, lower: true, strict_lower: true, strict_upper: true, upper: true}.freeze

The Matrix class represents a mathematical matrix. It provides methods for creating matrices, operating on them arithmetically and algebraically, and determining their mathematical properties (trace, rank, inverse, determinant).

Method Catalogue

To create a matrix:

To access Matrix elements/columns/rows/submatrices/properties:

Properties of a matrix:

Matrix arithmetic:

Matrix functions:

Matrix decompositions:

Complex arithmetic:

  • conj

  • conjugate

  • imag

  • imaginary

  • real

  • rect

  • rectangular

Conversion to other data types:

String representations:

tr

tr() Instance Public methods Alias for:

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identity

identity(n) Class Public methods Creates an n by n

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rect

rect() Instance Public methods Returns an array containing matrices corresponding

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conjugate

conjugate() Instance Public methods Returns the conjugate of the matrix.

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row_vectors

row_vectors() Instance Public methods Returns an array of the row vectors of

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empty?

empty?() Instance Public methods Returns true if this is an empty

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symmetric?

symmetric?() Instance Public methods Returns true is this is a

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component

component(i, j) Instance Public methods Alias for:

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each_with_index

each_with_index(which = :all) Instance Public methods Same as

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to_a

to_a() Instance Public methods Returns an array of arrays that describe the

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