title: Finding the minimum value for different variables
body: <p>If i am doing some math functions for different variables for example:</p>
  
  <pre><code>a = x - y
  b = x**2 - y**2
  c = (x-y)**2
  d = x + y
  </code></pre>
  
  <p>How can i find the minimum value out of all the variables. For example:</p>
  
  <pre><code>a = 4
  b = 7
  c = 3
  d = 10
  </code></pre>
  
  <p>So the minimum value is 3 for c. How can i let my program do this.</p>
  
  <ul>
  <li>What have i thought so far:</li>
  <li>make a list</li>
  <li>append a,b,c,d in the list</li>
  <li>sort the list</li>
  <li>print list[0] as it will be the smallest value.</li>
  </ul>
  
  <p>The problem is if i append a,b,c,d to a list i have to do something like:</p>
  
  <pre><code>lst.append((a,b,c,d))
  </code></pre>
  
  <p>This makes the list to be - 
      [(4,7,3,10)]</p>
  
  <p>making all the values relating to one index only ( lst[0] )</p>
  
  <p>If possible is there any substitute to do this or any way possible as to how can i find the minimum!</p>
  
  <p>LNG - PYTHON</p>
  
  <p>Thank you</p>