Explain how to use fortran programming in details

1. Write the program you want to write.

2. Compile the program. To do this, type f77 .f into the command line. If this gives an error, you probably haven't installed a Fortran compiler like for example gfortran yet.

3. Run the program. The compiler has produced a file called a.out. Run this file by typing ./a.out.

4. Understand what you just wrote.

5. Add your comment. To add a comment that has an entire line on its own, write a c directly into a new line, without the 6 spaces. After that, write your comment. You should leave a space between the c and your comment for better readability, but this isn't required. Note that you have to use a ! instead of a c in Fortran 95 and newer.

To add a comment in the same line as code, add a ! where you want your comment to begin. Again, a space isn't required, but improves readability.

none because it's so obvious