Ideal + Ideal -- sum of ideals

Synopsis

• Operator: +

• Usage:

  I + J

• Inputs:
  • I, an ideal
  • J, an ideal, in the same ring as I
• Outputs:
  • an ideal, the sum of the two ideals I and J

Description

i1 : R = QQ[t][a..d];

i2 : I = ideal(a,(t+1)*c) + ideal(a^2,b^2)

                          2   2
o2 = ideal (a, (t + 1)c, a , b )

o2 : Ideal of R

i3 : trim I

                          2
o3 = ideal (a, (t + 1)c, b )

o3 : Ideal of R

See also

• ideals