title: Are there any ways to calculate the subtraction of values from one 2-dimensional arrays in python?
body: <p>I am finding a way to calculate the difference of values from one 2-dimensional array.</p>
  <pre><code>arr1 = [[1,2,3],[5,6,7]]
  </code></pre>
  <p>My array will be like this and I want my code to subtract 5-1,6-2 and 7-3.</p>
  <p>Is it possible to do that?</p>