title: Cannot convert Taylor1{Float64} to series data for plotting Julia
body: <p>I want to ask how do I get the value from the First-order Taylor Approximation since I want to use its value in the plot.</p>
  <p>So I have an array of
  <br></p>
  <pre><code>jump_value = [-945.0, -287.55589538221216, 19.122751150095354, 113.22912169505338, 96.60890174423561, 39.60661306353262, -14.088053425973683, -42.593904767135726, -40.99191308586612, -16.478882710263225, 16.47888271026317, 40.991913085866095, 42.59390476713573, 14.088053425973682, -39.60661306353257, -96.60890174423555, -113.2291216950534, -19.122751150095276, 287.5558953822114, 945.0]
  </code></pre>
  <p>The elements in the array represents y from x = 0 to x = 10 on 2 dimensions graph.</p>
  <p>However, I want to convert the above values to first-order Taylor Approximation.
  <br>
  I tried to use the function TaylorSeries to get the value, but it seems that it only gives the formula function. So how do I get the value of first-order Taylor Approximation from the array above?</p>
  <pre><code>using TaylorSeries
  
  first_order = Taylor1(jump_value, 1)
  println(first_order)
  
  plot(0:jump_interval:10, first_order , 
      xlabel = &quot;X value&quot;, ylabel = &quot;Y value&quot;,  title = &quot;Freg we love you!&quot;,
      linecolor = :black,
      linewidth = 3,
      legend = :bottomright,
      markershape = :circle,
      label = &quot;Childhood&quot;)
  </code></pre>
  <p>Thanks for anyone reply in advance.</p>