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Calculating the factorial of a number in Delphi: Recursive and iterative methods

Yanniel's notes – The factorial function can be defined in both recursive and iterative ways. Take a look at the following definitions borrowed from Wikipedia.Recursive definition: Iterative definition:For both the above definitions we have that: The purpose here is not the mathematical stuff, but two provide the implementation of such definitions in Delphi (Object Pascal). First, I bring you one recursive implementation of the factorial function. Notice how the function calls itself, which is what the recursion really is:function Factorial(aNumber: UInt64): UInt64;begin  Assert(aNumber >= 0, 'The ...
Favorite? Off-Topic? Yanniel @ 2011-07-20 13:59

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