A procedure is run by calling it. To call it, a programmer uses the procedure name and includes any parameters (values) that the procedure needs, for example: SUBROUTINE f_TO_c(temperature_in_f) ...

CALL statements invoke a subroutine to perform calculations, operations, or a service. CALL statements are often used in place of functions when the operation returns multiple results or, in some ...

There are two types of subroutine: Procedures perform a specific task but do not return a value. Functions manipulate data and return a value to the main program. A local variable is a variable that ...