# EQNUM

## Example of usage

(Example taken from http://jonsson.eu/research/lectures/lect1/web/)



<?php include "eqnum.php"; ?>
<p>
From an all-classical point-of-view, the calculation of the
electric polarization density of metals and plasmas, containing
a free electron gas, can be performed using the model of free
charges acting under the Lorenz force of an electromagnetic field,
</p>
<div class="center">
<img class="center" src="lect1_eq_disp_001.png"
alt="Some text describing the equation, e.g. TeX-code" />
<?php eqdef("lorentz_motion"); ?>
</div>
<p>
where <b>E</b>(<i>t</i>) and <b>B</b>(<i>t</i>) are all-classical
electric and magnetic fields of the electromagnetic field of the
light. In forming the equation <?php eqref("lorentz_motion"); ?>
for the motion of the electron, the origin was chosen to coincide
with the center of the nucleus.
</p>




which produces the following:

"From an all-classical point-of-view, the calculation of the electric polarization density of metals and plasmas, containing a free electron gas, can be performed using the model of free charges acting under the Lorenz force of an electromagnetic field,

(1)

where E(t) and B(t) are all-classical electric and magnetic fields of the electromagnetic field of the light. In forming the equation (1) for the motion of the electron, the origin was chosen to coincide with the center of the nucleus."

Tillbaka till föregående sida

Ditt namn: