15 lines
242 B
Text
15 lines
242 B
Text
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FUNCTION itFib (n)
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n1 = 0
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n2 = 1
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FOR k = 1 TO ABS(n)
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sum = n1 + n2
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n1 = n2
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n2 = sum
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NEXT k
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IF n < 0 THEN
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itFib = n1 * ((-1) ^ ((-n) + 1))
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ELSE
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itFib = n1
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END IF
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END FUNCTION
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