What does Repmat function do?

repmat (MATLAB Functions) B = repmat(A,m,n) creates a large matrix B consisting of an m -by- n tiling of copies of A . repmat(A,m,n) when A is a scalar, produces an m -by- n matrix filled with A ‘s value. This can be much faster than a*ones(m,n) when m or n is large.

What is octave Repmat?

: repmat ( A , m ) : repmat ( A , m , n ) : repmat ( A , m , n , p …) : repmat ( A , [ m n ]) : repmat ( A , [ m n p …]) Repeat matrix or N-D array. Form a block matrix of size m by n , with a copy of matrix A as each element. If n is not specified, form an m by m block matrix.

How do you concatenate in MATLAB?

C = cat( dim , A1,A2,…,An ) concatenates A1 , A2 , … , An along dimension dim . You can use the square bracket operator [] to concatenate. For example, [A,B] or [A B] concatenates arrays A and B horizontally, and [A; B] concatenates them vertically.

Why zeros is used in MATLAB?

The zeros function allows you, the programmer, to create an “empty array”… okay its not really empty, it has a bunch of zeros in it. There are two reasons to do this. You are creating a list of counters, and counting starts at 0.

What is reshape function in MATLAB?

The reshape function changes the size and shape of an array. As long as the number of elements in each shape are the same, you can reshape them into an array with any number of dimensions. Using the elements from A , create a 2-by-2-by-3 multidimensional array.

What does length function do in MATLAB?

length (MATLAB Functions) The statement length(X) is equivalent to max(size(X)) for nonempty arrays and 0 for empty arrays. n = length(X) returns the size of the longest dimension of X . If X is a vector, this is the same as its length.

What is reshape in MATLAB?

What concatenation means?

Definition of concatenation 1 : a group of things linked together or occurring together in a way that produces a particular result or effect an unusual concatenation of circumstances George McGovern was the beneficiary, in 1972, of a unique concatenation of party reform and political accident.—

What does size function do in Matlab?

size (MATLAB Functions) d = size(X) returns the sizes of each dimension of array X in a vector d with ndims(X) elements. [m,n] = size(X) returns the size of matrix X in separate variables m and n . m = size(X,dim) returns the size of the dimension of X specified by scalar dim .

How do you use reshape function?

The reshape() function is used to give a new shape to an array without changing its data. Array to be reshaped. The new shape should be compatible with the original shape. If an integer, then the result will be a 1-D array of that length.