MATLAB Function Reference |
Syntax
Description
Y = eye(n)
returns the n
-by-n
identity matrix.
Y = eye(m,n) or eye([m n])
returns an m
-by-n
matrix with 1
's on the diagonal and 0
's elsewhere.
Y = eye(size(A))
returns an identity matrix the same size as A
.
eye(m, n, classname)
or eye([m,n],classname)
is an m-by-n matrix with 1's of class classname
on the diagonal and zeros of class classname
elsewhere. 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:
Limitations
The identity matrix is not defined for higher-dimensional arrays. The assignment y = eye([2,3,4])
results in an error.
See Also
expm1 | ezcontour |
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