[Octave-patch-tracker] [patch #8116] num2hex matlab compatibility

[anonymous]

URL:
  <http://savannah.gnu.org/patch/?8116>

                 Summary: num2hex matlab compatibility
                 Project: GNU Octave
            Submitted by: None
            Submitted on: lun 08 lug 2013 10:09:46 UTC
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

>From Octave documentation:

Loadable Function: s = num2hex (n)

    Typecast a double precision number or vector to a 16 character hexadecimal
string of the IEEE 754 representation of the number. For example:

              num2hex ([-1, 1, e, Inf, NaN, NA]);
              ⇒ "bff0000000000000
                  3ff0000000000000
                  4005bf0a8b145769
                  7ff0000000000000
                  fff8000000000000
                  7ff00000000007a2"

But in Matlab documentation num2hex can support single precision:

num2hex

Convert singles and doubles to IEEE hexadecimal strings
Syntax

num2hex(X)
Description

If X is a single or double precision array with n elements, num2hex(X) is an
n-by-8 or n-by-16 char array of the hexadecimal floating-point representation.
The same representation is printed with format hex.
Examples

num2hex([1 0 0.1 -pi Inf NaN])

returns

ans =

3ff0000000000000
0000000000000000
3fb999999999999a
c00921fb54442d18
7ff0000000000000
fff8000000000000
num2hex(single([1 0 0.1 -pi Inf NaN]))

returns

ans =

3f800000
00000000
3dcccccd
c0490fdb
7f800000
ffc00000

http://www.mathworks.it/it/help/matlab/ref/num2hex.html

To allow compatibility, please allow num2hex function to handle single
precision elements.




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