zeros (MATLAB Functions)

Create an array of all zeros

Syntax

B = zeros(n)
B = zeros(m,n)
B = zeros([m n])
B = zeros(d1,d2,d3...)
B = zeros([d1 d2 d3...])
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(d1,d2,d3...) or B = zeros([d1 d2 d3...]) returns an array of zeros with dimensions d1-by-d2-by-d3-by-... .

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

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