How do you make a tab space in Fortran?

Your line will typically not produce any tab character, but some number of blank (space) characters. If you want two tab characters, you have to use their ASCII code 9. Note the explicit format ‘(4g0)’ used to avoid unwanted blank characters. With the g0 descriptor it will work for any type of a and b .

What is fixed format Fortran?

The standard fixed format source lines are defined as follows: The first 72 columns of each line are scanned. See “Extended Lines”. The first five columns must be blank or contain a numeric label. Continuation lines are identified by a nonblank, nonzero in column 6.

What are descriptors of format in Fortran?

Data descriptors are used to read and write items in the data transfer list in READ and WRITE statements. Format control descriptors do not correspond to any item in the data transfer list but control other aspects of I/O such as tabulation, new lines, treatment of blanks, etc.

How do you write long lines in Fortran?

In Fortran, a statement must start on a new line. If a statement is too long to fit on a line, it can be continued with the following methods: If a line is ended with an ampersand, &, it will be continued on the next line. Continuation is normally to the first character of the next non-comment line.

What is a format statement?

The FORMAT statement is a non-executable statement that defines a format specification. It has the following syntax: xx FORMAT fs. where. xx is a statement number that is used as an identifier in a READ, WRITE, PRINT, or ASSIGN(label) statement.

What are different types of Fortran?

Fortran – Data Types

  • Integer type.
  • Real type.
  • Complex type.
  • Logical type.
  • Character type.

What is a format descriptor?

A FORMAT statement is a labelled nonexecutable statement which can appear anywhere within a program unit. It is of the form label FORMAT(edit-descriptor-list) Data descriptors are used to read and write items in the data transfer list in READ and WRITE statements.

How long can a Fortran line be?

In fixed-form source, lines can be longer than 72 characters. Columns 73 through 96 are ignored. Standard Fortran 90 allows 72-character lines.