DO loops continue Fortran?
The CONTINUE statement is often used as a place to hang a statement label, usually it is the end of a DO loop. The CONTINUE statement is used primarily as a convenient point for placing a statement label, particularly as the terminal statement in a DO loop. Execution of a CONTINUE statement has no effect.
DO loops counter?
You can use any executable statement within a DO-loop, including IF-THEN-ELSE-END IF and even another DO-loop. The following are a few simple examples: INTEGER variables Counter, Init, Final and Step are control-var, initial-value, final-value and step-size, respectively.
Why DO-loop is used in Fortran?
The do loop construct enables a statement, or a series of statements, to be carried out iteratively, while a given condition is true.
What does * do in FORTRAN?
Operators
| Operator | Description |
|---|---|
| * | multiply |
| / | divide |
| + | add |
| – | subtract |
What is cycle in FORTRAN?
The cycle statement causes the loop to skip the remainder of its body, and immediately retest its condition prior to reiterating.
How does the DO loop construct in Fortran work?
The do loop construct enables a statement, or a series of statements, to be carried out iteratively, while a given condition is true. step is the increment, if this is omitted, then the variable var is increased by unity
Can a step size be zero in a DO LOOP?
More precisely, during the course of executing the DO-loop, these values will not be re-computed. step-size cannot be zero. If the value of control-var is less than or equal to the value of final-value, the statements part is executed. Then, the value of step-size is added to the value of control-var.
How many times does a DO LOOP iterate?
A DO loop iterates a fixed number of times but sometimes it is necessary to loop based on some kind of testable criterion which does not depend on the number of iterations. One such loop is called a do-while loop which iterates zero or more times.
Are there any real indices in Fortran 90?
In the Fortran 90 standard, do loops with real indices were declared obsolete, and eliminated in Fortran 95. Actually, at the moment I’m not sure if I have fortran 90 or fortran 95, because my linux crashed a month ago and then I had to build everything new…