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In Desperate Need Of Help - Maths Assignment due in 12 hours.

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In Desperate Need Of Help - Maths Assignment due in 12 hours. Programming forum discussing coding and everything related to the well-known TI-83/83+/84/84+ graphing calculators for math and science. Creative ideas, helpful information and questions regarding applications are welcomed but no homework at all!

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Old June 19th, 2008, 09:32 AM
Zoidberg Zoidberg is offline
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Exclamation In Desperate Need Of Help - Maths Assignment due in 12 hours.
Hey, I've got a maths assignment to do on riffling a deck of cards.
I'm making a guess-and-check program on my calculator for extra originality marks.
I really need help though. The basic idea is if (c-1)(2^x/c-1 -w)=1 in my formula then the number guessed (x) is correct. However, in some of the higher numbers of cards, the above formula equals something like .9999999997 or .9999999998 instead of one.
This becomes a problem as it says the number guessed is incorrect, when infact it is correct.

EDIT: PUTTING THE CALCULATOR ON AUTO ROUND TO ANY AMOUNT OF DECIMAL PLACES DOES NOT WORK

I have:
:if G=1:then
: Disp "number of cards",x

However, it needs to be something like
"If G=0.955555555 to 1:then
:"Disp "number of cards",x"

Is there any way anyone knows about that I can program this into my calculator? It's really urgent. Thankyou!
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Old August 3rd, 2008, 11:33 AM
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I don't exactly understand what you are trying to do.

What do you mean, "riffling a deck of cards"?
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Old August 4th, 2008, 11:31 AM
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MrLarkins MrLarkins is offline
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Quote:
Originally Posted by Zoidberg
Hey, I've got a maths assignment to do on riffling a deck of cards.
I'm making a guess-and-check program on my calculator for extra originality marks.
I really need help though. The basic idea is if (c-1)(2^x/c-1 -w)=1 in my formula then the number guessed (x) is correct. However, in some of the higher numbers of cards, the above formula equals something like .9999999997 or .9999999998 instead of one.
This becomes a problem as it says the number guessed is incorrect, when infact it is correct.

EDIT: PUTTING THE CALCULATOR ON AUTO ROUND TO ANY AMOUNT OF DECIMAL PLACES DOES NOT WORK

I have:
:if G=1:then
: Disp "number of cards",x

However, it needs to be something like
"If G=0.955555555 to 1:then
:"Disp "number of cards",x"

Is there any way anyone knows about that I can program this into my calculator? It's really urgent. Thankyou!


try this:
Code:
If G>0.95 and G(<=)1           //  (<=) means less than or equal to
Then
Disp "number of cards",x
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Old August 9th, 2008, 10:55 AM
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Asday Asday is offline
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Uh, doesn't this forum have a rule against doing someone elses homework?
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Old August 10th, 2008, 08:29 AM
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MrLarkins MrLarkins is offline
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maybe,...

but what does that have to do with this thread? Which reply was doing his homework for him? Did one of the posters go to his house and punch the buttons for him?

take it easy there Kermit. It's past due anyhow.
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