FORTRAN Language

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