how to declare variable as constant without defining its value

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Twinkle Goyal
Twinkle Goyal 2021-9-29
编辑： Matt J 2021-9-29
suppose u have two polynomial equations - (a*x^3+b*x^2+c*x+d , a*x^2+b*x+c) and u want to find common roots for the two equations . here u need to find roots in form of a , b , c ,d
CODE
syms x
gcd(a*x^3+b*x^2+c*x+d , a*x^2+b*x+c)

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回答（1 个）

Matt J
Matt J 2021-9-29
编辑：Matt J 2021-9-29
Ran in:
It seems clear that they will only ever have common roots if d=0, in which case the common roots will be,
syms x a b c
solve(a*x^2+b*x+c==0)
ans = 

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