我安装的matlab中datefun函数中的conv为空，谁知道matlab函数包中conv函数程序？急求

Question

如果你安装了matlab请按照以下路径试一试查找conv函数: Program Files\matlab\toolbox\matlab\datafun\conv.m
我的邮箱是[email protected],能够发到邮箱么？

Answer 1

我给你复制出来了。整个conv.m文件中的内容：

function c = conv(a, b, shape)
%CONV Convolution and polynomial multiplication.
% C = CONV(A, B) convolves vectors A and B. The resulting vector is
% length MAX([LENGTH(A)+LENGTH(B)-1,LENGTH(A),LENGTH(B)]). If A and B are
% vectors of polynomial coefficients, convolving them is equivalent to
% multiplying the two polynomials.
%
% C = CONV(A, B, SHAPE) returns a subsection of the convolution with size
% specified by SHAPE:
% 'full' - (default) returns the full convolution,
% 'same' - returns the central part of the convolution
% that is the same size as A.
% 'valid' - returns only those parts of the convolution
% that are computed without the zero-padded edges.
% LENGTH(C)is MAX(LENGTH(A)-MAX(0,LENGTH(B)-1),0).
%
% Class support for inputs A,B:
% float: double, single
%
% See also DECONV, CONV2, CONVN, FILTER and,
% in the Signal Processing Toolbox, XCORR, CONVMTX.
% Copyright 1984-2008 The MathWorks, Inc.
% $Revision: 5.16.4.7 $ $Date: 2008/10/31 06:19:46 $
if ~isvector(a) || ~isvector(b)
error('MATLAB:conv:AorBNotVector', 'A and B must be vectors.');
end
if nargin < 3
shape = 'full';
end
if ~ischar(shape)
error('MATLAB:conv:unknownShapeParameter', ...
'SHAPE must be ''full'', ''same'', or ''valid''.');
end
% compute as if both inputs are column vectors
c = conv2(a(:),b(:),shape);
% restore orientation
if strcmp(shape,'full')
if length(a) > length(b)
if size(a,1) == 1 %row vector
c = c.';
end
else
if size(b,1) == 1 %row vector
c = c.';
end
end
else
if size(a,1) == 1 %row vector
c = c.';
end
end