MATBKSL
=======

Left matrix division



Block Screenshot
~~~~~~~~~~~~~~~~





Contents
~~~~~~~~


+ `Left matrix division`_
  +

    + `Palette`_
    + `Description`_
    + `Dialog box`_
    + `Example`_
    + `Default properties`_
    + `Interfacing function`_
    + `Computational function`_
    + `See also`_





Palette
~~~~~~~


+ `Matrix operation palette`_




Description
~~~~~~~~~~~

The MATBKSL block outputs the left matrix division. It is a solution
to A*x=B. The higher input is the A matrix, the lower one is the B
matrix, and the output is x. If A is an MxN1 matrix, B must be a MxN2
matrix where N1 and N2 can be different or equal. The output x is a
N1xN2 matrix.

The equivalent of MATBKSL is `backslash (\)`_ ïn Scilab.





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.




Example
~~~~~~~


::

    A=[1 7 3;23 32 29]
    B=[21 18;13 10]
    then the result of the A*x=B equation is (A\B):
    x=[-4.504 -3.922;3.643 3.132;0.000 0.000]




Default properties
~~~~~~~~~~~~~~~~~~


+ **always active:** no
+ **direct-feedthrough:** yes
+ **zero-crossing:** no
+ **mode:** no
+ **regular inputs:** **- port 1 : size [-1,-2] / type 1** **- port 2
  : size [-1,-3] / type 1**
+ **regular outputs:** **- port 1 : size [-2,-3] / 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_bksl




Interfacing function
~~~~~~~~~~~~~~~~~~~~


+ SCI/modules/scicos_blocks/macros/MatrixOp/MATBKSL.sci




Computational function
~~~~~~~~~~~~~~~~~~~~~~


+ SCI/modules/scicos_blocks/src/c/mat_bksl.c
+ SCI/modules/scicos_blocks/src/c/matz_bksl.c




See also
~~~~~~~~


+ `MATDIV - Matrix division (xcos Block)`_
+ `MATMUL - Matrix Multiplication (xcos Block)`_


.. _Dialog box: MATBKSL.html#Dialogbox_MATBKSL
.. _Matrix operation palette: Matrix_pal.html
.. _Description: MATBKSL.html#Description_MATBKSL
.. _Example: MATBKSL.html
.. _See also: MATBKSL.html#Seealso_MATBKSL
.. _Computational function: MATBKSL.html#Computationalfunction_MATBKSL
.. _MATDIV - Matrix division (xcos Block): MATDIV.html
.. _MATMUL - Matrix Multiplication (xcos Block): MATMUL.html
.. _Default properties: MATBKSL.html#Defaultproperties_MATBKSL
.. _Palette: MATBKSL.html#Palette_MATBKSL
.. _Interfacing function: MATBKSL.html#Interfacingfunction_MATBKSL
.. _backslash (\): backslash.html