What type of function Matlab has help to construct symmetric matrix?

What type of built-in functions (such as function Toeplitz) that come with Matlab help us to construct a symmetric matrix (not random) ?

[James Tursa]

Any specific properties needed?

[David Goodmanson]

Hi Omar,

any matrix of your choosing can be made into a symmetric matrix of course with

A = (A+A.')/2 

Answer 1

[Steven Lord]

Several of the matrices you can create using the gallery function are symmetric, and some have other interesting and/or useful properties.

[Omar B.]

Great function . Thank you so much. It is what I need.

Answer 2

[James Tursa]

If no specific properties needed, then you could use

n = the desired size
M = rand(n);
M = M + M';

[Omar B.]

Thank you so much. I just want to learn more about the built - in function that can we use to create symmetric function.

Answer 3

[Walter Roberson]

squareform() can convert a vector of values representing the upper triangle, into a full symmetric matrix.

[Omar B.]

That is really helpful. Thank you so much.

Answer 4

[Omar B.]

Thank you so much . I really appreciate your help.