Simple factorial function in C++ :D
Basiclly what im trying to to (and not for uni but for someone else) is to try and create a function to take a interger from a user and find the factorial of is.
Factorial being : The factorial of 2 is: 2x1=2 The factorial of 9 is: 9 x 8x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 720 So far i can do: int num; count<< "Please enter a interger.."; cin<< num; now i need the funcation to somehow do the factoril bit :P this being a error trap saying if the answer is <=0 then jsut return 0 if(numfac==>0) { cout>>numfac; else cout<<0; } So if anyone can help in being able to do the function bit that would be amazingly helpfull thanks sexy people :D (ignore any mistakes i just that bit on the spot lol) 
Re: Simple factorial function in C++ :D
Write a function that calculates the given number multiplied by that number minus one.
Ensure for 1 and less it returns a suitable value. Make sure it is fully debugged before you go on to the next step and that some test values return the correct result, e.g. 1>1, 3>6, 6>30, 12>132 (remember at this point all it is calculating is n*(n1). Then instead of "that number minus one", just call the function from within itself with "that number minus one" as the given number. Easy! Code:
int f(int n) 
Re: Simple factorial function in C++ :D
ah yes i can see what you mean xpi0t0.....thanks for the help almost there :D

Re: Simple factorial function in C++ :D
Code:
//Aim: to Find Factorial Of a No. Using function 
Re: Simple factorial function in C++ :D
And did you feel the need to inform the entire Tour de France team when you finally stopped falling off your bike?

All times are GMT +5.5. The time now is 01:21. 