How to subtract the values of a multi-dimensional array
<p>I have a multi-dimensional array representing a coordination between different places :-</p>

<pre><code>coordination[x,y]
</code></pre>

<p>But I am not sure how I can loop through the array and subtract the values of the x-axis &amp; y-axis between different elements in the array.</p>

<p>Best Regards</p>
