检查matlab版本

  %-- Checking the Matlab version and if the specified Toolbox is available

   a = ver;

  % ud.Spline = 0;

   i = 1;

    

   while ( (i <= size(a,2)) && (~strcmp(a(i).Name,'MATLAB')) )

       i = i+ 1;

   end

   idx = find(a(i).Version == '.');

   v1 = str2double(a(i).Version(1:idx-1));        v2 = str2double(a(i).Version(idx+1:end));

   if ( (v1 >= 7) && (v2 >= 6) )                               %if version >7.6(R2008a)

       ud.Version = 1;

   else

       ud.Version = 0;

   end

Release history

Version[19]	Release name	Year	Release Date	Notes
MATLAB 1.0		1984
MATLAB 2		1986
MATLAB 3		1987
MATLAB 3.5		1990		Ran on MS-DOS but required at least a 386 processor. Version 3.5m required math coprocessor
MATLAB 4		1992
MATLAB 4.2c	R7	1994		Ran on Windows 3.1. Required a math coprocessor
MATLAB 5.0	R8	1996	December, 1996
MATLAB 5.1	R9	1997	May, 1997
MATLAB 5.1.1	R9.1
MATLAB 5.2	R10	1998	March, 1998
MATLAB 5.2.1	R10.1
MATLAB 5.3	R11	1999	January, 1999
MATLAB 5.3.1	R11.1		November, 1999
MATLAB 6.0	R12	2000	November, 2000
MATLAB 6.1	R12.1	2001	June, 2001
MATLAB 6.5	R13	2002	July, 2002
MATLAB 6.5.1	R13SP1	2003
MATLAB 6.5.2	R13SP2
MATLAB 7	R14	2004	June, 2004
MATLAB 7.0.1	R14SP1		October, 2004
MATLAB 7.0.4	R14SP2	2005	March 7, 2005
MATLAB 7.1	R14SP3		September 1, 2005
MATLAB 7.2	R2006a	2006	March 1, 2006
MATLAB 7.3	R2006b		September 1, 2006	HDF5-based MAT-file support
MATLAB 7.4	R2007a	2007	March 1, 2007
MATLAB 7.5	R2007b		September 1, 2007	Last release for Windows 2000 and PowerPC Mac. License Server support for Windows Vista[20]
MATLAB 7.6	R2008a	2008	March 1, 2008
MATLAB 7.7	R2008b		October 9, 2008
MATLAB 7.8	R2009a	2009	March 6, 2009	First release for 32-bit & 64-bit Windows 7.
MATLAB 7.9	R2009b		September 4, 2009	First release for Intel 64-bit Mac, and last for Solaris SPARC.
MATLAB 7.9.1	R2009bSP1	2010	April 1, 2010
MATLAB 7.10	R2010a		March 5, 2010	Last release for Intel 32-bit Mac.
MATLAB 7.11	R2010b		September 3, 2010
MATLAB 7.11.1	R2010bSP1	2011	March 17, 2011
MATLAB 7.12	R2011a		April 8, 2011
MATLAB 7.13	R2011b		September 1, 2011