1. FORTRAN stands for FORmulaTRANslation.
  2. FORTRAN was developed in the 1950s by a team of IBM programmers led by John Backus and released in 1957.
  3. 50 years later, FORTRAN remains the programming language that is still used for large-scale numerical calculations in science and engineering.
  4. FORTRAN was the world's first high-level programming language.
  5. It is not a case sensitive language.

IMPORTANT KEY POINTS

  •  File name must be start  from an Alphabet.
  • Variable name must be start from an Alphabet.
  •  Back slash  (  \  )  is used  for division in Fortran.
  •   Double asterisk  (  ** )  is used for power.  e.g.  = 2**3
  •  I,J,K,L,M,N  are by default integer variables.


In Mathematics
In Fortran
<
=
.LT.
≤
=
.LE.
>
=
.GT.
≥
=
.GE.
=
=
.EQ.
≠
=
.NE.
AND  , OR , NOT
=
.AND. .OR. .NOT.






Given Below is way to write programs in FORTRAN work sheet




      

 FORTRAN 77 PROGRAMS


1) FORTRAN SIMPLE PROGRAMS

2) FORTRAN IF THEN ELSE PROGRAMS