$ whois fortran

Fortran

first released in 1957 · by John Backus

$ guessprog --inspect fortran

year: 1957
paradigm: procedural
family: fortran
memory: manual
binding: static
safety: strong

FORTRAN(7)

AUTHORS: John Backus
HISTORY: Fortran, short for "Formula Translation", was developed by a team at IBM led by John Backus and delivered for the IBM 704 in 1957. Backus proposed it because writing programs in assembly language was slow and expensive. Many doubted a compiler could produce code as fast as hand-written assembly, so the team invested heavily in optimisation, and the result was the first widely used high-level language. Fortran has been revised many times since, gaining free-form source, modules, array operations and parallel features.
USAGE: Fortran is a legacy language that is still very much in production in high-performance computing: weather and climate models, physics, chemistry and engineering simulations. Many numerical libraries such as BLAS and LAPACK have Fortran roots.
SEE ALSO: Fortran on Wikipedia ↗

$ cat stats.f90

program stats
  implicit none
  real :: x(5) = [2.0, 4.0, 4.0, 5.0, 7.0]
  real :: mean, sd

  ! Whole-array operations, no explicit loops
  mean = sum(x) / size(x)
  sd = sqrt(sum((x - mean)**2) / (size(x) - 1))

  print '(a, f6.2)', 'mean:   ', mean
  print '(a, f6.2)', 'stddev: ', sd
end program stats