Wikipedia:Reference desk/Archives/Mathematics/2008 June 14

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June 14

Shift registers

Would someone like to check whether Fibonacci registers with taps in this table [Xilinx table] for 12 13 14 16 or 19 bits are maximal as claimed? (Question posed at Talk:Linear feedback shift register) Cuddlyable3 (talk) 12:15, 14 June 2008 (UTC)

I need more help translating currency

What is the difference of L500,000.00UGSP and L450,000.00GSP ? —Preceding unsigned comment added by 151.213.231.202 (talk) 15:44, 14 June 2008 (UTC)

I don't recognise those abbreviations. What does the L stand for, and what do UGSP and GSP stand for? If you aren't sure either, could you describe the context you found these numbers in? --Tango (talk) 16:18, 14 June 2008 (UTC)

50,000 L ? Lira? GSP more context needed please...87.102.86.73 (talk) 19:41, 14 June 2008 (UTC)

hypergeometric series??

I mentioned in an earlier question a differential equation I was having problems with..

I found the solution to this in terms of an infinte polynomial in x where the coefficients were:

a_n+2(n+2)(n+3)=pa_n+1+qa_n

p and q are any number in general. (In general I'm aware of solutions such as e^-x/n , e^-x/n(1-x/n), and further solutions such as e^-x/nf(x) where f(x) is a finite polynomial..)

The nearest thing I could find to this was hypergeometric series - except those seem to only have a_n+1 and a_n terms. Is there an article on such things? Can anyone give links to anything that deals with the resultant polynomials? To be more specific - it looks like I should be finding a way to evaluate the polynomial as x tends to infinty in the general case.. —Preceding unsigned comment added by 87.102.86.73 (talk) 19:32, 14 June 2008 (UTC)