Re: Rule replacement doesn't work after NDSolve?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124032] Re: Rule replacement doesn't work after NDSolve?*From*: gac <g.crlsn at gmail.com>*Date*: Fri, 6 Jan 2012 04:18:05 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Thank you. Great example. I see that the FullForm[-2*I] is also not Times[Complex[-2,0],Complex[0,1]]. So this won't work either: -2*I/.Complex[0,1]->Complex[0,-1] to replace only I with -I, we need to use parentheses: -2*(I/.I->-I) Not very pretty, and it seems to get worse very quickly: 1-2*(I/.I->-I) or 2*(I/.I->-I)*Exp[2*(I/.I->-I)] It seems that every replacement of I with -I must be specified separately. Uuugly!