factorial

I am new to Python and currently reading Python 3 for absolute beginner and face following problem. I would like to calculate factorial with procedure. request user to input an non negative number n then use for loop to calculate factorial and the code is like that: N = input("Please input factorial you would like to calculate: ") ans = 1 for i in range(1,N+1,1): ans = ans*i print(ans) while i would like to add a feature to check whether input number N is non-negative number. like: if N != int(N) and N < 0: I want the user to input N again if it is NOT non-negative number. Thanks for your

I need to write an application that will take a list of files (some large, some small) and fit them onto DVDs (or CDs, or whatever) as efficiently as possible. The whole point of this application is to use up as much of the 1st disc before moving onto the 2nd disc, filling the 2nd disc up as much as possible before moving onto the 3rd disc, etc. (Note: The application doesn't have to do the actual burning to the DVD, it just has to figure out the best possible fit). I initially thought I had a good game-plan by generating a permutation of the files and then checking each combination to see

I have python 3.7.1 and scipy version : 1.3.0. I'm getting error while calling auto_arima saying : "cannot import name 'factorial' from 'scipy.misc'" Just this basic import causes the issue:- "from pmdarima.arima import auto_arima" I've tried reinstalling scipy, didn't work The function factorial was moved from scipy.misc to scipy.special . The version in scipy.misc has been deprecated for a while, and it was removed in scipy 1.3.0. Something in pmdarima or one of its dependencies is still using the name scipy.misc.factorial . The culprit appears to be statsmodels 0.9.0. pmdarima depends on

I'm trying to compute the value of 7 factorial and display the answer, but when I tried to look up a way to do this I kept finding code that was written so that a number first had to be put in from the user and then it would factor whatever number the user put in. But I already know what number I need, obviously, so the code is going to be different and I'm having trouble figuring out how to do this. I tried this at first public class Ch4_Lab_7 { public static void main(String[] args) { int factorial = 7; while (factorial <= 7) { if (factorial > 0) System.out.println(factorial*facto… factorial

I'm making a script which gives the factorial for a inserted number, but i'm having some problems with the multiplication. Note: the factorial for is given by: 9!=9*8*7*6*5*4*3*2*1 Here's my code: #!/bin/bash echo "Insert an Integer" read input if ! [[ "$input" =~ ^[0-9]+$ ]] ; then exec >&2; echo "Error: You didn't enter an integer"; exit 1 fi function factorial { while [ "$input" != 1 ]; do result=$(($result * $input)) input=$(($input-1)) done } factorial echo "The Factorial of " $input "is" $result it keeps giving me errors of all kinds for diferent multiplication technics :/ Currently the

So, simple procedure, calculate a factorial number. Code is as follows. int calcFactorial(int num) { int total = 1; if (num == 0) { return 0; } for (num; num > 0; num--) { total *= num; } return total; } Now, this works fine and dandy (There are certainly quicker and more elegant solutions, but this works for me) for most numbers. However when inputting larger numbers such as 250 it, to put it bluntly, craps out. Now, the first couple factorial "bits" for 250 are { 250, 62250, 15126750, 15438000, 3813186000 } for reference. My code spits out { 250, 62250, 15126750, 15438000, -481781296 } which

This question already has answers here : Understanding recursion in Python (4 answers) Closed 3 months ago . Found this solution to make a factorial() function in python, but I am having trouble with understanding ' why ' it works. The function is : def factorial(x): if x <= 1: return 1 else: return x * factorial(x-1) I'm having trouble understanding where the actual multiplication happens? It would seem to me, that the function would keep calling itself until it gets to 1, and returns 1. Can someone enlighten me? I'm sure I'm missing something easy. A general tip for programming is to insert

I need a good factorial function. The one I have written here works entirely, except when n gets far too large. This is for a calculator app, and I can return 0 / 0 for values that cannot be factorialed because I have an error checker that will declare that as impossible. However performing the function on a very large number crashes the app. I can't use a range operator because my types are doubles. func factorial(n: Double) -> Double { if n >= 0 { return n == 0 ? 1 : n * self.factorial(n - 1) } else { return 0 / 0 } } What is the best way to do this? As others have said you can use libraries