Fortran Variables and Their Types

A Fortran variable can be considered as a box that is capable of holding a single value of certain type. Thus, a variable has a name, the variable name and a type. The way of choosing a name for a variable must fulfill the rules of composing a Fortran identifier. The type of a variable can be one of the following: Click here to learn the forms of these values.
Click here to learn more about declaring variables.