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[Octave-bug-tracker] [bug #54934] Using jacobian


From: anonymous
Subject: [Octave-bug-tracker] [bug #54934] Using jacobian
Date: Thu, 1 Nov 2018 13:16:03 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0

URL:
  <https://savannah.gnu.org/bugs/?54934>

                 Summary: Using jacobian
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Thu 01 Nov 2018 05:16:02 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: abuelo
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.2.2
        Operating System: GNU/Linux

    _______________________________________________________

Details:

I am using
Symbolic pkg v2.7.1: Python communication link active, SymPy v1.3.

    syms x y z r theta phi
    x = r * cos(theta) * sin(phi)
    y = r * sin(theta) * sin(phi)
    z = r * cos(phi)
    jacobian([r theta phi])

returns:
ans = (sym 3×3 matrix)

  ⎡0  1  0⎤
  ⎢       ⎥
  ⎢0  0  1⎥
  ⎢       ⎥
  ⎣1  0  0⎦

¿should it not return?


  ⎡1  0  0⎤
  ⎢       ⎥
  ⎢0  1  0⎥
  ⎢       ⎥
  ⎣0  0  1⎦










    _______________________________________________________

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  <https://savannah.gnu.org/bugs/?54934>

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