# Initializing Matrices or arrays
# Creating a matrix of 0s
z1 = zeros(5); % Create a 5-by-5 matrix of zeroes
z2 = zeros(2,3); % Create a 2-by-3 matrix
# Creating a matrix of 1s
o1 = ones(5); % Create a 5-by-5 matrix of ones
o2 = ones(1,3); % Create a 1-by-3 matrix / vector of size 3
# Creating an identity matrix
i1 = eye(3); % Create a 3-by-3 identity matrix
i2 = eye(5,6); % Create a 5-by-6 identity matrix
# Syntax
- Z = zeros(sz,datatype,arraytype)
- X = ones(sz,datatype)
- I = eye(sz,datatype)
# Parameters
| Parameter | Details |
|---|---|
| sz | n (for an n x n matrix) |
| sz | n, m (for an n x m matrix) |
| sz | m,n,...,k (for an m-by-n-by-...-by-k matrix) |
| datatype | 'double' (default), 'single', 'int8', 'uint8', 'int16', 'uint16', 'int32', 'uint32', 'int64', or 'uint64' |
| arraytype | 'distributed' |
| arraytype | 'codistributed' |
| arraytype | 'gpuArray' |
# Remarks
These functions will create a matrix of doubles, by default.