MATLAB Function Reference

zeros - Create array of all zeros

Syntax

B = zeros(n)
B = zeros(m,n)
B = zeros([m n])
B = zeros(m,n,p,...)
B = zeros([m n p ...])
B = zeros(size(A))
zeros(m, n,...,classname)
zeros([m,n,...],classname)

Description

B = zeros(n) returns an n-by-n matrix of zeros. An error message appears if n is not a scalar.

B = zeros(m,n) or B = zeros([m n]) returns an m-by-n matrix of zeros.

B = zeros(m,n,p,...) or B = zeros([m n p ...]) returns an m-by-n-by-p-by-... array of zeros.

Note   The size inputs m, n, p, ... should be nonnegative integers. Negative integers are treated as 0.

B = zeros(size(A)) returns an array the same size as A consisting of all zeros.

zeros(m, n,...,classname) or zeros([m,n,...],classname) is an m-by-n-by-... array of zeros of data type classname. classname is a string specifying the data type of the output. classname can have the following values: 'double', 'single', 'int8', 'uint8', 'int16', 'uint16', 'int32', 'uint32', 'int64', or 'uint64'.

Example

x = zeros(2,3,'int8');

Remarks

The MATLAB^® language does not have a dimension statement; MATLAB automatically allocates storage for matrices. Nevertheless, for large matrices, MATLAB programs may execute faster if the zeros function is used to set aside storage for a matrix whose elements are to be generated one at a time, or a row or column at a time. For example

x = zeros(1,n);
for i = 1:n, x(i) = i; end

See Also

eye, ones, rand, randn, complex

xslt

zip