www.gusucode.com > elfun工具箱matlab源码程序 > elfun/sqrt.m

    %SQRT   Square root.
%   SQRT(X) is the square root of the elements of X. Complex 
%   results are produced if X is not positive.
%
%   See also SQRTM, REALSQRT, HYPOT.

%   Copyright 1984-2005 The MathWorks, Inc.
%   Built-in function.