Fortran 90 how to write very long output. - Stack Overflow.
Fortran 90 Control StructuresFortran 90 Control Structures Computer programming is an art form, like the creation of poetry or music 1 Donald Ervin Knuth Fortran, IF The equals sign or equality sign is a mathematical symbol used to indicate equality It was invented in 1557 by Robert Recorde In an equation, the equals sign is.
If you do not specify a format, GNU Fortran will print real numbers using about 9 digits, even if you do calculations in double precision. If you want to print in double precision you must use write and format statements. When double precision is used the maximum number of digits possible is 17. A format specifier something like format (fm.n), where m is at least 20, is required to take full.
FORTRAN 0 was really not called FORTRAN 0, it is just the very first version of Fortran. The program is given here in Pascal, C and five variants of Fortran. The purpose of this is to show how Fortran has been developed from a cryptical, almost machine-dependent language, into a modern structured high-level programming language.
Though Fortran 77 programs can be run using a Fortran 90 compiler, Fortran 90 is so different that the author felt it was not a good idea to just revise Fortran 77 and introduce Fortran 90 in some places in the book. Thus this book is entirely new and introduces Fortran 90 from basics. In 1996 some small extensions were made to Fortran 90 and has called Fortran 95. This book also discusses.
Status: In Fortran 90 declared obsolescent, deleted in Fortran 95 (but still supported by some current compilers as an extension). Action: usually simplest to store the complete format string in a character variable; if this is given the same name as the integer used originally, then the read and write statements do not need to be changed.
First let me say that I think every serious Fortran programmer should always write new code in Fortran 90 or Fortran 95, but for those of you stuck on a desert island with only a FORTRAN 77 compiler at your disposal, here's a way to write a recursive subroutine. FORTRAN 77 subroutines and functions are not allowed to call themselves directly. Attempting to do such will result in a compile time.
The Fortran 90 bindings for OpenGL are an alternative to the older FORTRAN 77 bindings. By using the new features of Fortran 90, they define an interface to OpenGL that does not depend on any extensions to the Fortran standard and provide access to the full function- ality of OpenGL.