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[Octave-bug-tracker] [bug #52761] unsure problems in plotting functions

From: anonymous
Subject: [Octave-bug-tracker] [bug #52761] unsure problems in plotting functions 'fplot' and 'surfnorm' help text
Date: Fri, 29 Dec 2017 07:39:13 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0


                 Summary: unsure problems in plotting functions 'fplot' and
'surfnorm' help text
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Fri 29 Dec 2017 12:39:11 PM UTC
                Category: Documentation
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.2.1
        Operating System: Any



help fplot:

N is the minimum number of points to use.  When N is specified, maximum
stepsize will be 'XHI - XLO / N'.

Does 'XHI - XLO / N' refer to '(XHI - XLO) / N' rather than 'XHI - (XLO / N)'

help surfnorm:

If output arguments are requested then the components of the normal
vectors are returned in NX, NY, and NZ and no plot is made.  The
normal vectors are unnormalized (magnitude != 1).  To normalize,
     mag = sqrt (nx.^2 + ny.^2 + nz.^2);
     nx ./= len;  ny ./= len;  nz ./= len;

In the above example code, do 'len' and 'mag' refer to the same variable ?


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