Create a string array in which some elements have trailing whitespace characters. Starting in R2017a, you can create strings using double quotes.

str1 = ["Skylab";
        "Mir   ";
        "ISS   "]

str1 = 3x1 string
    "Skylab"
    "Mir   "
    "ISS   "

Justify the text on the right. strjust does not alter the first element because "Skylab" has no whitespace.

str2 = strjust(str1)

str2 = 3x1 string
    "Skylab"
    "   Mir"
    "   ISS"

Create a cell array of character vectors. Some of the character vectors have leading and trailing whitespace characters.

C1 = {'Euler    ';
      'Fibonacci';
      '    Gauss'}

C1 = 3x1 cell
    {'Euler    '}
    {'Fibonacci'}
    {'    Gauss'}

Center-justify the text. If a piece of text has leading or trailing whitespace, or both, then strjust adjusts the text to have an equal number of leading and trailing whitespace characters. strjust does not alter a piece of text when it has neither leading nor trailing whitespace.

C2 = strjust(C1,'center')

C2 = 3x1 cell
    {'  Euler  '}
    {'Fibonacci'}
    {'  Gauss  '}