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Diffstat (limited to 'doc/source/f2py/code/fib3.f')
| -rw-r--r-- | doc/source/f2py/code/fib3.f | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/source/f2py/code/fib3.f b/doc/source/f2py/code/fib3.f new file mode 100644 index 000000000..08b050cd2 --- /dev/null +++ b/doc/source/f2py/code/fib3.f @@ -0,0 +1,21 @@ +C FILE: FIB3.F + SUBROUTINE FIB(A,N) +C +C CALCULATE FIRST N FIBONACCI NUMBERS +C + INTEGER N + REAL*8 A(N) +Cf2py intent(in) n +Cf2py intent(out) a +Cf2py depend(n) a + DO I=1,N + IF (I.EQ.1) THEN + A(I) = 0.0D0 + ELSEIF (I.EQ.2) THEN + A(I) = 1.0D0 + ELSE + A(I) = A(I-1) + A(I-2) + ENDIF + ENDDO + END +C END FILE FIB3.F |