The difference between semicolon and comma

Hi matlab community ,

I am working on let' s say a homework. I realized that during the homework, The representations one of them x=[1,2,3] and x=[1;2;3] are different. What is the different between them? I get a solution using both of them but different.

Answer 1

[Wayne King]

 x = [1,2,3];

creates a 1x3 row vector.

 x =  [1;2;3];

creates a 3x1 column vector

[engineerOfPhysics]

Well Why I get different result when I plot of sin(x) function ? between these values. ?