.. index::
    single: Math

.. _Math:

****
Math
****

 Module with math function operation on `REAL` type. 

Const
=====

.. code-block:: modula2

    e* = 2.7182818284;

.. code-block:: modula2

    pi* = 3.1415926535;

Procedures
==========

.. _Math.sqrt:

sqrt
----

 Computes the square root of the `REAL` x 

.. code-block:: modula2

    PROCEDURE sqrt*(x: REAL): REAL;

.. _Math.exp:

exp
---

 Computes e raised to the power of x 

.. code-block:: modula2

    PROCEDURE exp*(x: REAL): REAL;

.. _Math.ln:

ln
--

 Computes natural (e) logarithm of x 

.. code-block:: modula2

    PROCEDURE ln*(x: REAL): REAL;

.. _Math.sin:

sin
---

 Computes the sine of the angle `REAL` x in radians 

.. code-block:: modula2

    PROCEDURE sin*(x: REAL): REAL;

.. _Math.cos:

cos
---

 Computes the cosine of the angle `REAL` x in radians 

.. code-block:: modula2

    PROCEDURE cos*(x: REAL): REAL;

.. _Math.arctan:

arctan
------

 Computes the arc tangent of the value `REAL` x 

.. code-block:: modula2

    PROCEDURE arctan*(x: REAL): REAL;

.. _Math.real:

real
----

 Return the `INTEGER` x converted to `REAL` 

.. code-block:: modula2

    PROCEDURE real*(x: INTEGER): REAL;

.. _Math.entier:

entier
------

 Computes the largest integer value not greater than x 

.. code-block:: modula2

    PROCEDURE entier*(x: REAL): INTEGER;