title: Use of linspace with a range of constant value parameters
body: <p>Consider the function</p>
  
  <pre><code>x(t) = C_prey e^{t (A - B C_predator)}
  </code></pre>
  
  <p>and</p>
  
  <pre><code> y(t) = C_predator
  </code></pre>
  
  <p>where <code>C_prey</code>, <code>C_predator</code>, <code>A</code>, <code>B</code> are constant value parameters. 
  For ease, let <code>C_prey</code> = <code>C_predator</code> = 10 and <code>B</code>=5</p>
  
  <p>To plot these two function together:</p>
  
  <p>I define the range of my values </p>
  
  <pre><code>A = transpose(5*[10 20 30 40 50])
  
  t = linspace(0.01,0.05,5)
  </code></pre>
  
  <p>Since I want to determine the plot over the time interval 0.01 to 0.05 for each value of A, I perform an element-wise multiplication to yield</p>
  
  <pre><code>t.*A
  </code></pre>
  
  <p>But <code>plot(t,x)</code> does not give me the plot I am looking for. I do not understand what is wrong with my method.</p>
  
  <p>Any help is appreciated.</p>