Answers for "python fibbonacci sequence"

1

python fibonacci generator

def fib(num):
    a = 0
    b = 1
    for i in range(num):
        yield a
        temp = a
        a = b
        b = temp + b


for x in fib(100):
    print(x)


def fib2(num): # Creates fib numbers in a list
    a = 0
    b = 1
    result = []
    for i in range(num):
        result.append(a)
        temp = a
        a = b
        b = temp + b
    return result


print(fib2(100))
Posted by: Guest on July-04-2020
10

fibonacci sequence python

# WARNING: this program assumes the
# fibonacci sequence starts at 1
def fib(num):
	"""return the number at index `num` in the fibonacci sequence"""
    if num <= 2:
        return 1
    return fib(num - 1) + fib(num - 2)

# method 2: use `for` loop
def fib2(num):
	a, b = 1, 1
	for _ in range(num - 1):
		a, b = b, a + b
	return a


print(fib(6))  # 8
print(fib2(6))  # same result, but much faster
Posted by: Guest on February-24-2020

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