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See the recommended documentation of this function

Справка Scilab >> Xcos > palettes > Matrix operation palette > MATLU

MATLU

LU Factorization

Block Screenshot

Description

The MATLU Block outputs two matrices L and U, with row pivoting, from the LU factorization of a square input matrix. If A is the input matrix then:

E*A=L*U where E is the permutation matrix, U an upper triangular matrix and L a lower triangular matrix.

The equivalent function of this block in Scilab is [l,u,e]=lu(A).

Dialog box

  • Datatype(1=real double 2=Complex)

    It indicates the type of the output. It support only the two types double (1) and complex (2). If we input another entry in this label xcos will print the message "Datatype is not supported".

    Properties : Type 'vec' of size 1.

Default properties

  • always active: no

  • direct-feedthrough: yes

  • zero-crossing: no

  • mode: no

  • regular inputs:

    - port 1 : size [-1,-1] / type 1

  • regular outputs:

    - port 1 : size [-1,-1] / type 1

    - port 2 : size [-1,-1] / type 1

  • number/sizes of activation inputs: 0

  • number/sizes of activation outputs: 0

  • continuous-time state: no

  • discrete-time state: no

  • object discrete-time state: no

  • name of computational function: mat_lu

Interfacing function

  • SCI/modules/scicos_blocks/macros/MatrixOp/MATLU.sci

Computational function

  • SCI/modules/scicos_blocks/src/c/mat_lu.c

  • SCI/modules/scicos_blocks/src/c/matz_lu.c

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Last updated:
Thu Oct 02 14:01:14 CEST 2014