Factorial

From Computer Science Wiki
Jump to navigation Jump to search
This a problem set for you to work through [1]

This is a problem set. Some of these are easy, others are far more difficult. The purpose of these problems sets are:

  1. to build your skill applying computational thinking to a problem
  2. to assess your knowledge and skills of different programming practices


What is this problem set trying to do[edit]

In this example we are learning about lists attributes like len() and math functions.

The Problem[edit]

Create a function, myFactorial(aNumber) which takes the parameter aNumber being passed and return the factorial of it. For example: if num = 3, then your program should return (3 * 2 * 1) = 6.

If you type print(myFactorial(10)) the result should be 3628800.


How you will be assessed[edit]

Your solution will be graded using the following axis:


Scope

  • To what extent does your code implement the features required by our specification?
  • To what extent is there evidence of effort?

Correctness

  • To what extent did your code meet specifications?
  • To what extent did your code meet unit tests?
  • To what extent is your code free of bugs?

Design

  • To what extent is your code written well (i.e. clearly, efficiently, elegantly, and/or logically)?
  • To what extent is your code eliminating repetition?
  • To what extent is your code using functions appropriately?

Style

  • To what extent is your code readable?
  • To what extent is your code commented?
  • To what extent are your variables well named?
  • To what extent do you adhere to style guide?

References[edit]

A possible solution[edit]

Click the expand link to see one possible solution, but NOT before you have tried and failed!

def factorial(number):
    if number == 0:
        return 1
    else:
        return number * factorial(number-1)
number=int(input("Enter what number to use factorial on: "))
print(factorial(number))

Consider the merits or otherwise of an argument or concept. Opinions and conclusions should be presented clearly and supported with appropriate evidence and sound argument.

Produce a plan, simulation or model.

A unit of abstract mathematical system subject to the laws of arithmetic.