title: How to Adjust y axis plot range in Matlab?
body: <p>I need to plot the following functions in matlab</p>
  
  <pre><code>y1=sign(x)
  y2=tanh(x)
  y3=(x)/(x+1)
  </code></pre>
  
  <p>The x-range is -5,5 with 0.1 spacing
  The y-plot range should be between -1.5 to 1.5.</p>
  
  <p>Each plot should have a labeled x and y axis and a legend in the lower right corner.</p>
  
  <p>The only things I cant figure out is how to adjust the y plot range. Ive tried editing the actual figure but all that seems to do is distort the graph. 
  Is there a command within matlab that will let me adjust the y axis plot range? </p>
  
  <p>The other thing I havent figured out yet is adding a legend, I can do it after the figure is created but I guess it needs to be done by matlab command. </p>