![Challenge Entry: Goggles of Truth [challenge entry]](/images/board_posticon_c.gif)

Stand up straight!
From the Goggles of Truth challenge. See all 191 entries (closed)
( , Sat 5 Feb 2005, 0:36, archived)

I like it. A question to the board - Anyone very good at calculus here or no someone that is. I'm trying to work out how to similate many dice rolls with just one and am stuck with the integration
( ,
Sat 5 Feb 2005, 0:41,
archived)

the function is P = K/(a^y)*y!*(k-y)!
If i can get an integrated function then im sorted. ( i may have to be able solve resulting equation afterwards not sure yet)
( ,
Sat 5 Feb 2005, 0:45,
archived)
If i can get an integrated function then im sorted. ( i may have to be able solve resulting equation afterwards not sure yet)

Can you even integrate !'s ?
Its been too long since a-levels....
You do know you can raise evertything on the bottom to the power of -1 if that helps?
( ,
Sat 5 Feb 2005, 0:48,
archived)
Its been too long since a-levels....
You do know you can raise evertything on the bottom to the power of -1 if that helps?

y = x! is simple enough so you must be able to integrate for x (greater than) 0
( ,
Sat 5 Feb 2005, 0:50,
archived)