title: Revert MinMax scaling
body: <p>I have an array of value (percentages) scaled from 0 to 100:</p>
  
  <pre><code>[34,  34,  84,  28,  56,  56,   0,   0, 100]
  </code></pre>
  
  <p>I know that these values have been scaled with a MinMax scaler:</p>
  
  <pre><code>V = (actual - min) / (max - min)
  </code></pre>
  
  <p>And then multiplied by 100 to have the percentages above. I didn't perform this transformation so I don't have actual, min, or max. But I have V.</p>
  
  <p>I wanted to use <code>numpy.linalg.solve</code>, but I obviously can't express V as a linear/independent combination of actual, min, max.</p>
  
  <p>Is it a known problem?</p>