How to write a lambda function that performs a function on the integers from one to n where n is an integer?

Question

Write a lambda function called factorials_1_to_n that computes the factorials of the numbers from 1 to n. Hint: Use the function factorial you already created.

The only thing I can think of doing is writing a for loop within the lambda function like.... for i in range(1,len(n)+1): factorial(i)…. but for loops are not allowed within a lambda function.

def factorial(n):
product=n
while n!=1:
    product=product*(n-1)
    n=n-1
return(product)
y=factorial(4)
print(y)


factorials_1_to_n = lambda n: ????????
y=factorials_1_to_n(4)
print(y)

Possible duplicate of https://stackoverflow.com/questions/15401376/python-lambda-function-to-calculate-factorial-of-a-number — dmitryro, Oct 03 '19 at 01:32

score 0 · Answer 1 · answered Oct 03 '19 at 01:28

0

I assume that a list is an acceptable result type

factorials_1_to_n = lambda n: [factorial(i+1) for i in range(n)]

The i+1 is used to calculate it from 1 to n, instead of from 0 to n-1.

See list comprehension in python

answered Oct 03 '19 at 01:28

pdpino

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How to write a lambda function that performs a function on the integers from one to n where n is an integer?

1 Answers1