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I am learning fortran from Chapman's "fortran 90-95 for scientists and engineers". I have question about the I descriptor. In the attached image, look at the second format statement, 210 format. In the output, the variable index+12 is not printed. I don't understand that. The book says that the I descriptor has general form rIw.m where m is the minimum number of digits to be displayed. So in the statement 210 format, we have 2I5.0, which means that minimum number of digits to be displayed is zero , but then in the output we see that "index" is displayed , while "index+12" is not displayed. I don't understand this confusing behavior.

thanks

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# Question on I descriptor in Fortran

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