[Octave-bug-tracker] [bug #52380] lower/upper functions should pass any numeric value?

[A.R. Burgers]

URL:
  <http://savannah.gnu.org/bugs/?52380>

                 Summary: lower/upper functions should pass any numeric value?
                 Project: GNU Octave
            Submitted by: arb
            Submitted on: Thu 09 Nov 2017 10:08:51 PM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

See http://savannah.gnu.org/bugs/?52358

There it appears tolower fails on complex numeric values.
I guess lower/upper should return any numeric value unchanged:

On matlab

>> version
ans = 8.6.0.267246 (R2015b)

>> lower(rand(2))
ans =
    0.8147    0.1270
    0.9058    0.9134

>> lower(i)
ans =  0.0000 + 1.0000i


octave:


octave:1> version
ans = 4.3.0+

octave:2> lower(rand(2))
ans =
   0.75904   0.20647
   0.35655   0.51602

octave:3> lower(i)
error: tolower: not defined for complex scalar






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