Manipulation of equations and inequalities in "high-school style"

*To*: mathgroup at smc.vnet.net*Subject*: [mg19516] Manipulation of equations and inequalities in "high-school style"*From*: silvano at iprolink.ch (Silvano D'Orazio)*Date*: Sat, 28 Aug 1999 15:53:29 -0400*Organization*: Newsfeeds.com http://www.newsfeeds.com 60,000+ UNCENSORED Newsgroups.*Sender*: owner-wri-mathgroup at wolfram.com

Does anybody know a Mathematica (3 or 4) package which allows manipulaton of equations and inequalities like high-school students are supposed to do? For example 2x+a = x-b subtract a 2x = x-b-a divide by 2, subtract x x = -b-a or (2^x-1)^(1/2) = 5b log both sides (1/2)(x-1)log2 = log5 + logb multiply by 2, divide by log2 2(log5 + logb) add 1 x-1 = -------------- log2 and so on. I think I saw such a notebook or package some years ago, but I am not able to find it any more. I think I am not the only teacher who would find this very useful. Thanks for all hints. Silvano D'Orazio -----------== Posted via Newsfeeds.Com, Uncensored Usenet News ==---------- http://www.newsfeeds.com The Largest Usenet Servers in the World! ------== Over 73,000 Newsgroups - Including Dedicated Binaries Servers ==-----