Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2006
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

On Reduce

  • To: mathgroup at smc.vnet.net
  • Subject: [mg72011] On Reduce
  • From: Virgil Stokes <vs at it.uu.se>
  • Date: Fri, 8 Dec 2006 06:18:00 -0500 (EST)

I have the following small piece of Mathematica code that works fine for 
my purposes.

 BInv = {{  1/4, 1/4, 0},
              {-1/2, 1/2, 0},
              {  3/4, -5/4, 1}}
 B = Inverse[BInv]
 b = {4 + \[Delta], 8, 10};
 BInv.b // FullSimplify
 Reduce[{%[[1]] >= 0, %[[2]] >= 0, %[[3]] >= 0}, {\[Delta]}]
 % /. {\[Delta] -> b1 - 4} // FullSimplify

which gives

0 <=  b1 <= 8

which is of course correct. But, how can I use (access) the values 0 and 8?
That is, I would like to now use these values in some expressions that 
would follow this.

Thanks,
V. Stokes


  • Follow-Ups:
  • Prev by Date: K-nearest neighbhors on an equispaced multidimensional grid
  • Next by Date: how-to show a contourplot together with a point grid
  • Previous by thread: Re: K-nearest neighbhors on an equispaced multidimensional grid
  • Next by thread: Re: On Reduce