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why is the recursion used in finding the factorial of a number?


why is the recursion used in finding the factorial of a number?

By : Kavya
Date : November 22 2020, 02:59 PM
it should still fix some issue You don't have to use recursion. Because C doesn't support so-called optimization of tail recursion calls, you should avoid recursion where it could be replaced by a simple loop. But C does support recursion at all, and such factorial is the simpliest example of recursive function, if we don't pay attention to the fact that it is not an optimal code.
Simpliest usecase of recursion where it is actually needed could be a directory tree go-round. If you try to replace recursion with a loop in the latter case, you will get much less readable code and you're still gonna need a stack with O(N) memory where N is maximum directory nesting level, so, in most common cases, you wouldn't achieve anything useful from this optimisation attempt.
code :


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Factorial of a number using recursion

Factorial of a number using recursion


By : chenhebi
Date : March 29 2020, 07:55 AM
wish of those help It loses one of the things that makes a recursive function recursive in that it has no exit condition.
All recursive solutions must satisfy three rules or properties: A recursive solution must contain a base case. A recursive solution must contain a recursive case. A recursive solution must make progress toward the base case.
Finding the factorial using recursion with the BigInteger Class

Finding the factorial using recursion with the BigInteger Class


By : AdRd
Date : March 29 2020, 07:55 AM
To fix this issue So consider the following program-segment! I've tried to use the basic recursion function to determine the factorial of a number, but now using the BigInteger class. , There's an error in the code, you should put
code :
  BigInteger factz = BigInteger.valueOf(a);
Recursion and factorial of a number in PHP

Recursion and factorial of a number in PHP


By : tripateurope.com
Date : March 29 2020, 07:55 AM
it helps some times
Factorial of a number using recursion without if - else & return statement in C

Factorial of a number using recursion without if - else & return statement in C


By : ozgur
Date : March 29 2020, 07:55 AM
hop of those help? Everyone in the solutions are giving functions with if else statements and return statement which i don't want . I have clearly mentioned that there should be no if else and return statement . that's why in my program i also didn't use it
I've tried writing a python code for finding a factorial using recursion

I've tried writing a python code for finding a factorial using recursion


By : Denis Elenok
Date : March 29 2020, 07:55 AM
I wish this help you You can start with this question: what is my function doing when it is called with argument n-1 (assume n-1 >= 1).
It returns nothing. Therefore n*fact(n-1) means - multiply n by nothing.
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