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Math CAD constant error

  1. Jul 26, 2006 #1
    I am trying to graph f(x)=X^3-9X in math cad and I keep getting a constant error on the 9x variable. How can I fix this?
  2. jcsd
  3. Jul 26, 2006 #2
    I don't have mathcad, but based on what you've typed here, I'm guessing it should be 9*x.
  4. Jul 26, 2006 #3
    Ok, I figured it out by playing around with the coeffiecient. It's x*9. 9*x did not work.
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