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Replies: 13   Last Post: Nov 23, 2012 6:11 PM

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 Tang Laoya Posts: 27 Registered: 11/21/12
Posted: Nov 22, 2012 8:10 PM

Dear Nasser,

There is another problem when using HornerForm: the numbers in the express haven't been combined, for example:

k11 = 1/60 (b1^2 + c1^2 + d1^2)
k11 = HornerForm[k11]

The outputs are:
1/60 (b1^2 + c1^2 + d1^2)
b1^2/60 + c1^2/60 + d1^2/60

respectively.

How to do to let the numbers are also been combined?

Thanks,
Tang Laoya

On Friday, November 23, 2012 8:28:54 AM UTC+8, Tang Laoya wrote:
> Dear Nasser,
>
>
>
> Thanks again for your quick reply. After using the following command, it works:
>
>
>
> vv = Det[{{1, 1, 1, 1}, {x1, x2, x3, x4}, {y1, y2, y3, y4}, {z1, z2,
>
> z3, z4}}];
>
> uu = HornerForm[vv, {x1, x2, x3, x4, y1, y2, y3, y4, z1, z2, z3, z4}]
>
>
>
>
>
>
>
> Thanks,
>
> Tang Laoya
>
>
>
> On Thursday, November 22, 2012 11:19:52 PM UTC+8, Tang Laoya wrote:
>

> > Dear all,
>
> >
>
> >
>
> >
>
> > I need to factor a polynomial express, however, it doesn't work, could anyone help me to take a look at it?
>
> >
>
> >
>
> >
>
> > Thanks,
>
> >
>
> > Tang Laoya
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > The code:
>
> >
>
> >
>
> >
>
> > vv = Det[{{1, 1, 1, 1}, {x1, x2, x3, x4}, {y1, y2, y3, y4}, {z1, z2,
>
> >
>
> > z3, z4}}];
>
> >
>
> > vv = Factor[vv]

Date Subject Author
11/22/12 Tang Laoya
11/22/12 Nasser Abbasi
11/22/12 Nasser Abbasi
11/22/12 Tang Laoya
11/22/12 Nasser Abbasi
11/22/12 Tang Laoya
11/22/12 Nasser Abbasi
11/22/12 Tang Laoya
11/22/12 Tang Laoya
11/22/12 Nasser Abbasi
11/22/12 Tang Laoya
11/23/12 Peter Pein
11/23/12 Tang Laoya
11/23/12 Richard Fateman