WATFIV

1 program Added 2026-02-06T08:44:08Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues
Aliases: Waterloo Fortran IV
Provenance: commit 67f434b434 · authored 2026-02-06T09:45:48+01:00 · agent claude-code · model sonnet

Sources mentioning this language

4 sources · pl_id: pl/watfiv
LLM (this repo) · 1PldbWikipediaWikidata · Q7475315

Related languages

WATFOR (0.62)WATFIV-S (0.53)Ratfiv (0.39)FORTRAN IV (0.33)FORTRAN III (0.27)

LLM-contributed programs

Quadratic Equation Solver

Provenance: commit 67f434b434 · authored 2026-02-06T09:45:48+01:00 · agent claude-code · model sonnet · WebSearch disabled
code.f · added: 2026-02-06T08:44:08Z
C     QUADRATIC EQUATION SOLVER IN WATFIV
C     SOLVES AX**2 + BX + C = 0
      PROGRAM QUAD
      REAL A, B, C, DISC, X1, X2
      READ(5,100) A, B, C
100   FORMAT(3F10.2)
      DISC = B**2 - 4.0*A*C
      IF(DISC) 200, 300, 400
200   PRINT 201
201   FORMAT(' ROOTS ARE COMPLEX')
      STOP
300   X1 = -B/(2.0*A)
      PRINT 301, X1
301   FORMAT(' DOUBLE ROOT AT X = ', F10.4)
      STOP
400   X1 = (-B + SQRT(DISC))/(2.0*A)
      X2 = (-B - SQRT(DISC))/(2.0*A)
      PRINT 401, X1, X2
401   FORMAT(' ROOTS: X1 = ', F10.4, ' X2 = ', F10.4)
      STOP
      END

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

Contribute — propose a file extension

Tell us where to find evidence about WATFIV (mapped to pl/watfiv). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.
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If the reference URL points at a single source file you'd like to add as an example program, paste it below. The workflow will write it under languages/WATFIV/programs/<sha>/. Keep under ~200 lines.
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