Open RobinHankin opened 1 year ago
There is a nice paper on this: Paul S. Wang 1978. "An improved multivariate factoring algorithm", Mathematics of Computation, volume 32 number 144, pp1215-1231.
For $U(x,x_2,\ldots,x_t)=\mathbb{Z}[x,x_2,\ldots,x_t]$ he writes
$$U(x,\ldots,x_t)=V_nx^n+\cdots+V_1x+V_0$$
and package idiom for this is to use series():
series()
> series(as.mvp("1 + 7*x + 8*x*y + x^6*z + 3*a*b*x^6"),"x") x^0(1) + x^1(7 + 8 y) + x^6(3 a b + z)
There is a nice paper on this: Paul S. Wang 1978. "An improved multivariate factoring algorithm", Mathematics of Computation, volume 32 number 144, pp1215-1231.
For $U(x,x_2,\ldots,x_t)=\mathbb{Z}[x,x_2,\ldots,x_t]$ he writes
$$U(x,\ldots,x_t)=V_nx^n+\cdots+V_1x+V_0$$
and package idiom for this is to use
series():