To build a complex polynomial

polynomial
complex

asked 2016-01-17 13:22:11 -0600

This post is a wiki. Anyone with karma >750 is welcome to improve it.

For example I have this polynomiyal:

p=(z-2*I)*(z+1*I)

I want sage show me someting like:

z^2-z*(1*I)-2

It doesn't mind the number of roots.

edit retag flag offensive close merge delete

add a comment

1 answer

Sort by » oldest newest most voted

answered 2016-01-17 16:17:03 -0600

vdelecroix
5566 ●14 ●64 ●115 http://www.labri.fr/pe...

Is that what you want?

sage: var('z')
sage: p=(z-2*I)*(z+1*I)
sage: p.expand()
z^2 - I*z + 2

edit flag offensive delete link

add a comment

Question Tools

1 follower

Stats

Asked: 2016-01-17 13:22:11 -0600

Seen: 55 times

Last updated: Jan 17 '16

Related questions

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

To build a complex polynomial edit

1 answer