When you are working with text, enclose sequences of characters in single quotes. You can assign text to a variable.
myText = 'Hello, world';
If the text includes a single quote, use two single quotes within the definition.
otherText = 'You''re right'
otherText = 'You're right'
otherText are arrays, like all MATLAB® variables. Their class or data type is
char, which is short for character.
Name Size Bytes Class Attributes myText 1x12 24 char
You can concatenate character arrays with square brackets, just as you concatenate numeric arrays.
longText = [myText,' - ',otherText]
longText = 'Hello, world - You're right'
To convert numeric values to characters, use functions, such as
f = 71; c = (f-32)/1.8; tempText = ['Temperature is ',num2str(c),'C']
tempText = 'Temperature is 21.6667C'