Using mathematical expressions
------------------------------

Mathematical expressions can be used in your input file. It is Fortran style. Available functions are shown in :numref:`Table %s <intrinsic-function>`.

.. container:: center

   .. table:: Intrinsic function.
      :name: intrinsic-function

      ===== ==== ==== ========= ======== ===== ==== =====
      \               Intrinsic Function            
      ===== ==== ==== ========= ======== ===== ==== =====
      FLOAT INT  ABS  EXP       LOG      LOG10 MAX  MIN
      MOD   NINT SIGN SQRT      ACOS     ASIN  ATAN ATAN2
      COS   COSH SIN  SINH      TAN      TANH       
      ===== ==== ==== ========= ======== ===== ==== =====

For example,

::

               S[ c1 * 3.5 * sin( 55 * pi / 180 ) ]

In this example, you can use the mathematical expression for one numeric data :math:`s` like ``S(`` :math:`s` ``)``. In this case, you should use square bracket [    ] instead of (    ).