msf2c.m

来自「GPS software toolbox for GPS receiver de」· M 代码 · 共 26 行

%   				                   msf2c.m
%  Scope:   This MATLAB macro determines the real symmetric matrix stored as
%           columnwise upper triangular part as a one-dimensional array from 
%           its two-dimensional array.
%  Usage:   xout = msc2f(n,a)
%  Description of parameters:
%           n    - input, real scalar, number of rows and columns of the 
%                  symmetric matrix
%           a    - input, two-dimensional array storing the full symmetric
%                  matrix
%           xout - output, one-dimensional array of length  n*(n+1)/2, storing 
%                  columnwise the upper triangular part of the symmetric matrix
%  Last update:  08/06/00
%  Copyright (C) 1996-00 by LL Consulting. All Rights Reserved.

function   xout = msf2c(n,a)

nn1 = n*(n+1)/2;
xout = zeros(1,nn1);
kt = 0;
for k = 1:n
   for kk = 1:k
      kt = kt + 1;
      xout(kt) = a(kk,k);
   end
end