19 lines
348 B
Plaintext
19 lines
348 B
Plaintext
FUNCTION Fibonacci (num)
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IF num < 0 THEN
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PRINT "Invalid argument: ";
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LET Fibonacci = num
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END IF
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IF num < 2 THEN
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LET Fibonacci = num
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ELSE
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LET Fibonacci = Fibonacci(num - 1) + Fibonacci(num - 2)
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END IF
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END FUNCTION
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PRINT Fibonacci(20)
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PRINT Fibonacci(30)
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PRINT Fibonacci(-10)
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PRINT Fibonacci(10)
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END
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