single.m

JAVA 数学程序库 提供常规的数值计算程序包

## Copyright (C) 2005 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, write to the Free
## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.

## -*- texinfo -*-
## @deftypefn {Function File} {} single (@var{val})
## Convert the numeric value @var{val} to single precision.
##
## @strong{Note}: this function currently returns its argument converted
## to double precision because Octave does not yet have a single-precision
## numeric data type.
## @end deftypefn

function retval = single (val)

  if (nargin == 1 && isnumeric (val))
    retval = double(val);
  else
    print_usage ();
  endif

endfunction

/*
@GROUP
miscelleanous
@SYNTAX
single(x)
@DOC
.
@EXAMPLES
<programlisting>
</programlisting>
@NOTES
@SEE
*/