polynomial division issue, how to find the remainder
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i have two polynomials like
a=X14 + X13 + X10 + X9
b=X8 + X7 + X6 + X4 + 1
i want to find a mod b using matlab pls.
3 Comments
Accepted Answer
Roger Stafford
on 9 Dec 2013
If your field is that of the real numbers, look at 'deconv' function at:
http://www.mathworks.com/help/matlab/ref/deconv.html
This is a quote from that documentation: "If u and v are vectors of polynomial coefficients, convolving them is equivalent to multiplying the two polynomials, and deconvolution is polynomial division. The result of dividing v by u is quotient q and remainder r."
3 Comments
Walter Roberson
on 9 Dec 2013
What datatype is c ? Do you mean c = [1 1 0 0 0 1 1 1 ...] or do you mean c = '1100011...' or do you mean c=110001111101010 decimal ?
More Answers (2)
Walter Roberson
on 9 Dec 2013
Possibly x^6 + x^3 depending on what your formulae mean.
6 Comments
Walter Roberson
on 9 Dec 2013
To convert c='110001111101010' to -1 for 1 and 1 for 0, use
2*('0' - c) + 1
M Naeem
on 10 Aug 2023
how we divide two polynomials in Polynomial Ring (Z_2[x]) to find the remainde?... let suppose i want to divide x^113 by x^8+x^4+x^3+x^2+1
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