Fortran Intrinsic Functions Fortran provides many commonly used functions, called intrinsic functions . Function Meaning Arg. Function Meaning Arg. Function Meaning Arg.
Functions have higher priority than any arithmetic operators.
All arguments of a function can be expressions. These expressions are evaluated first and passed to the function for computing the function value. The returned function value is treated as a value in the expression. The result is computed and saved into uninitialized variable R . Therefore, R receives 3.0.