Hi,
> Q2. How can I define the set of all primes up to some limit N but
> excluding 2 and multiples of some number D?
Try this:
sage: N=100
sage: D=5
sage: [i for i in primes(3,N+1) if not i.divides(D)]
[3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
73, 79, 83, 89, 97]
Gr
Hi,
> Q1. How can I extract elements from a solution set?
>
> For example, consider:
>
> sage: x, y = var('x, y')
> sage: solve([x+y==6, x-y==4], x, y)
> [[x == 5, y == 1]]
Like this:
sage: sol = solve([x+y==6, x-y==4], x, y)
sage: sol[0]
[x == 5, y == 1]
sage: sol[0][0]
x == 5
sage: sol[0][0].r
Q1. How can I extract elements from a solution set?
For example, consider:
sage: x, y = var('x, y')
sage: solve([x+y==6, x-y==4], x, y)
[[x == 5, y == 1]]
How can I extract these values for x and y so that I can, for
instance, use them as the coefficients for a polynomial f(t)=x+ty so
that I hav
