NumberMultiplier usage

*To*: mathgroup at smc.vnet.net*Subject*: [mg121857] NumberMultiplier usage*From*: "tenons at gmail.com" <tenons at gmail.com>*Date*: Wed, 5 Oct 2011 04:00:45 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Can anyone shed any light on why Times[3, 2^z] appears as 3 x 2^z but Times[-3,2^x] appears as -3 2^z ? For presentation purposes (for freshmen!), I would like the NumberMultiplier to show up in the second case as well. I realize I can do something like: Unprotect[Times]; Format[Times[x_?(NumericQ[#] && Negative[#] &), z_] := x\[Cross]z]: Protect[Times] but this seems clumsy, a little dangerous, doesn't affect input lines and produces the result with parentheses which I don't care for: (-3)x2^z Does anybody else care about such things? Michael Williams [ I have NumberMultiplier set to \[Cross] in all the various *Forms and the $FrontEnd and AutoMultiplicationSymbol -> True ]