differances between fortran 90 and 77

Discussion in 'OT Technology' started by tsi90, Oct 4, 2005.

  1. tsi90

    tsi90 _____

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    I accepted a research project this semester which involves me programming a new function into a fortran 77 program that calculates the electric potential of orbitals in atoms. I have some experience with fortran 90 but none with 77. Are there any big changes in the two I should know about?
     
  2. samm

    samm Next in Line

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    I have not used Fortran 77 extensively, but this is what I recall when taking a class that required Fortran 90 for the homework:

    Fortran 90 added dynamic memory allocation
    Fortran 90 is a free form language (ex: whitespace positioning does not matter)
    Fortran 90 adds some array operations that Fortran 77 doesn't have, but I don't remembe exactly what
     
  3. Peyomp

    Peyomp New Member

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    Fortran 90 can be structured into reasonably decent procedural code... and 77 cannot be, it is all doomed to be complete shit?
     

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