title: How to project certain values from the graph on the axis in Python?
body: <p>I am trying to plot a normal distribution curve in Python using matplotlib. I followed the <a href="https://stackoverflow.com/a/10138308/7665691">accepted answer</a> in the post <a href="https://stackoverflow.com/questions/10138085/python-pylab-plot-normal-distribution">python pylab plot normal distribution</a> in order to generate the graph.</p>
  
  <p>I would like to know if there is a way of projecting the mu - 3*sigma, mu + 3*sigma and the mean values on both the x-axis and y-axis.</p>
  
  <p>Thanks</p>
  
  <p><strong>EDIT 1</strong>
  Image for explaining projection
  <a href="https://i.stack.imgur.com/sVCRF.png" rel="nofollow noreferrer">example_image</a>.</p>
  
  <p>In the image, I am trying to project the mean value on x and y-axis. I would like to know if there is a way I can achieve this along with obtaining the values (the blue circles on x and y-axis) on x and y-axis.</p>