[Octave-bug-tracker] [bug #53863] Octave not solving right

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?53863>

                 Summary: Octave not solving right
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Tue 08 May 2018 07:16:12 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: Juan
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.0
        Operating System: GNU/Linux

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Details:



>> y = a - b/(c+p)^2


# if you solve for p:

>> solve(y,p)

  ⎡       _____⎤
  ⎢     ╲╱ a⋅b ⎥
  ⎢-c - ───────⎥
  ⎢        a   ⎥
  ⎢            ⎥
  ⎢       _____⎥
  ⎢     ╲╱ a⋅b ⎥
  ⎢-c + ───────⎥
  ⎣        a   ⎦

These answers are not correct. it is: -c +- sqrt(b/a)








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