X^2 in matlab

1. How do you write x 2 in MATLAB?
2. What is X 2 size in MATLAB?
3. What does X (:) do in MATLAB?
4. How to do square root in MATLAB?

How do you write x 2 in MATLAB?

For example, you might write x. ^2 in another way, using x. *x. This would effectively square every element in the vector x.

What is X 2 size in MATLAB?

size. To find the size of a dimension of a matrix, use z=size(x,DIM), where DIM is the dimension. Note that dimension 1 is the number of rows while dimension 2 is the number of columns, so if x is T by K, z=size(x,1) returns T while z=size(x,2) returns K .

What does X (:) do in MATLAB?

x(:) transforms the array to a column vector.

How to do square root in MATLAB?

B = sqrt( X ) returns the square root of each element of the array X . For the elements of X that are negative or complex, sqrt(X) produces complex results.