
Re: Another question about Factor
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]

