Described electromagnetism by introducing a 1-form H, a 2-form D and a 2-form E^dt+B and a 3-form J satisfying three equations.<br><br>

 If you are a financial maths student wondering how on earth the theory of electromagnetism could ever be of relevance to you, then take a look at the 
<a href="https://en.wikipedia.org/wiki/Econophysics">Wikipedia page</a>
 on econophysics.