Message Boards Message Boards

GROUPS:

[✓] Get polynomial roots multiplicity?

Posted 7 months ago
695 Views
|
3 Replies
|
3 Total Likes
|

If you enter this example of a polynomial in Wolfram Alpha, you get the roots to be 1 and 3, but how can I get a read-out of the multiplicity of each root. Evidently, in this case it is 3 for x = 1 and 2 for x = 3.

3 Replies

Hi,

you might want to go to the open cloud:

https://sandbox.open.wolframcloud.com/

and type in:

Roots[7 (x - 1)^3 (x - 3)^2 == 0, x]

The out put will be:

enter image description here

Cheers,

Marco

Thank you! Just got it running now.

I just got an email with a comment of yours:

Sorry, I'm not familiar with this cloud feature, and it's prompting me to decide between Wolfram Alpha input and Free-form input. And in either case I am not getting to reproduce your answer.

It doesn't show up here yet. But as a matter of fact you should not be prompted to decide between Wolfram Alpha or Free-form input. If you just click on the workspace and start typing it should work. Alternatively, if you click on the litte plus symbol you can choose Wolfram Language Input:

enter image description here

and start to type.

Cheers,

Marco

PS: Sorry, sometimes the comments show up with quite some delay on the Community.

Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Reply Preview
Attachments
Remove
or Discard

Group Abstract Group Abstract