Operands
=========


Keyword MATR_ASSE
-----------------


.. code-block:: text

    /MATR_ASSE

It is possible to overwrite a matr_asse object with the result of the operation. In this case, it is mandatory to specify here which object is being reused.


Keyword COMB_R
--------------


.. code-block:: text

    /COMB_R

Description of the terms of the linear combination producing a matrix with **real coefficients**.


Operand PARTIE
~~~~~~~~~~~~~~~~


.. code-block:: text
 ◊ PARTIE =/'REEL',
/'IMAG',

To perform extractions or linear combinations of imaginary or real part (s) of complex matrices.


Operand MATR_ASSE
~~~~~~~~~~~~~~~~~~~~


.. code-block:: text
 ♦ MATR_ASSE = m

Name of the matr_asse\ _\ * concept to be combined.


Operand COEF_R
~~~~~~~~~~~~~~~~


.. code-block:: text
 ♦ COEF_R = r

Real coefficient to apply to the argument concept of MATR_ASSE.


Keyword COMB_C
--------------


.. code-block:: text

    /COMB_C =

Description of the terms of the linear combination producing a matrix with **complex coefficients**.


Reminder on the syntax of complex values
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Complex values can be declared in two different ways:


* in the form :math:`a+\mathrm{ib}` with the syntax "RI, a, b" where a and b are real numbers,


* in the form :math:`(\mathrm{module},\mathrm{phase})` with "MPmod, ph" where mod and ph are real numbers

(ph in degrees).


Operand MATR_ASSE
~~~~~~~~~~~~~~~~~~~~


.. code-block:: text
 ♦ MATR_ASSE = m

Name of the matr_asse\ _\ * concept to be combined.


Operands COEF_R/COEF_C
~~~~~~~~~~~~~~~~~~~~~~~~~~


.. code-block:: text
 ♦/COEF_R = r

Real coefficient to apply to the argument concept of MATR_ASSE.


.. code-block:: text
/COEF_C = c

Complex coefficient to apply to the argument concept of MATR_ASSE.


Keyword CALC_AMOR_GENE
----------------------

This keyword makes it possible to build an object of type Matr_asse_Gene_R corresponding to Basile's damping matrix from a list of reduced depreciations, (keyword AMOR_REDUIT or LIST_AMOR).

MASS_GENE = masgen, RIGI_GENE = riggen,

masgen and riggen are the 2 generalized matrices of mass and stiffness.


Operand SANS_CMP = 'LAGR'
--------------------------

This operand has the effect of setting to "zero" the terms of the assembled matrix (result) corresponding to the rows and columns of the Lagrange degrees of freedom.