ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 15 Sep 2020 01:40:53 +0200Coefficient of Polynomial Function in a loophttps://ask.sagemath.org/question/53457/coefficient-of-polynomial-function-in-a-loop/ Hello so I am using the .coefficient function to extract the coefficient of a monomial given some polynomial. For example, 3x^(2).coefficient(x^(2)) is 3.
R.<x,y,z,w> = QQ[]
List1= [x^(2), y^(2),z^(2)]
List2= [x^(2)+y^(2)+z^(2), 3*x^(2),4*y^(2)]
List3=[]
For example if I do List2[0].coefficient(List1[0]), Sage immediately outputs 1. However, when I try to run it through all of List1, for some reason, the runtime seems to go forever so I feel I am doing something wrong. Even if I restrict to only the first term in List2, the runtime is very long and doesn't stop. Am I doing something wrong? In the code below, it should only run through 3 terms.
i=0
while i<len(List1):
Result=List2[0].coefficient(List1[i])
List3.append(Result)
i+=1whatupmattTue, 15 Sep 2020 01:40:53 +0200https://ask.sagemath.org/question/53457/