WHO Describe Currently Defined Variables

Section: Inspection Functions

Usage

Reports information on either all variables in the current context or on a specified set of variables. For each variable, the who function indicates the size and type of the variable as well as if it is a global or persistent. There are two formats for the function call. The first is the explicit form, in which a list of variables are provided: 
  who a1 a2 ...

In the second form 

  who

the who function lists all variables defined in the current context (as well as global and persistent variables). Note that there are two alternate forms for calling the who function: 

  who 'a1' 'a2' ...

and 

  who('a1','a2',...)

Example

Here is an example of the general use of who, which lists all of the variables defined. 
--> c = [1,2,3];
--> f = 'hello';
--> p = randn(1,256);
--> who
  Variable Name       Type   Flags             Size
              c    double                    [1 3]
              f      char                    [1 5]
              p    double                    [1 256]

In the second case, we examine only a specific variable: 

--> who c
  Variable Name       Type   Flags             Size
              c    double                    [1 3]
--> who('c')
  Variable Name       Type   Flags             Size
              c    double                    [1 3]