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Need help rotating a parabola on cartesian coordinate system

  1. Sep 10, 2012 #1
    Okay I need to rotate a parabola on a cartesian coordinate system, y=x^2 by 90 degrees about the origin (either direction) without using piecewise, or inverse functions. Basically I am trying to use translations and deformations to accomplish this.

    Anyone thoughts?
  2. jcsd
  3. Sep 10, 2012 #2
  4. Sep 10, 2012 #3
  5. Sep 10, 2012 #4
    Looks fine to me.

    How much experience do you have with linear algebra? Consider a rotation matrix; can you think of a way to it use to transform your parabola? Maybe try representing your function parametrically.
  6. Sep 10, 2012 #5
    It just started working, I can see it now.

    Not familiar with this, is there a non calculus solution?
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