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Remove constant term

asked 2016-04-15 05:51:21 -0500

santoshi gravatar image

p=5 K.=GF(p^2);K.modulus() R.<z>=PolynomialRing(K); f=(2*a+4).

from above equation i just want to remove constant term 4

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slelievre gravatar imageslelievre ( 2016-04-15 07:30:36 -0500 )edit

[EDIT] I misunderstood your question, and you get an answer on your other question.[/EDIT] Your question does not make sense to me: You define K as the finite field with 25 elements, and R as the polynomial ring in z over K. Then, you define f which has nothing to do with R or K since it is a symbolic expression depending on a variable a! Actually, the code as you write it does not even work since a is undeclared. But let's say it is declared somewhere as a symbolic variable. You can either write simply f-4 to get no constant coefficient, or f-f(a=0). If f where a polynomial of the polynomial ring R (say f=2*z+4), you could also do f - f.constant_coefficient().

B r u n o gravatar imageB r u n o ( 2016-04-15 10:16:30 -0500 )edit

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answered 2016-04-15 11:16:25 -0500

B r u n o gravatar image

See here

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Asked: 2016-04-15 05:51:21 -0500

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Last updated: Apr 15 '16