Fastest way to check inequality

*To*: mathgroup at smc.vnet.net*Subject*: [mg91361] Fastest way to check inequality*From*: Ravi Balasubramanian <bravi at cs.washington.edu>*Date*: Mon, 18 Aug 2008 03:36:52 -0400 (EDT)

Hello Math-groupers, I need to test the inequality A . x <= 0, where x is a three-D vector. A is a 35000x3 matrix. I need to test this for 20000 points. So I set this up as follows: A = RandomReal[{0,1},{35000,3}]; x = RandomReal[{0,1},{20000,3}]; (And @@ NonPositive[constrMat . # ]) & /@ x; Is this the fastest way? Ravi The University of Washington Seattle, WA