Re: Manipulation of equations and inequalities in "high-school style"
- To: mathgroup at smc.vnet.net
- Subject: [mg19531] Re: [mg19516] Manipulation of equations and inequalities in "high-school style"
- From: "David Park" <djmp at earthlink.net>
- Date: Tue, 31 Aug 1999 00:52:22 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Silvano, There are probably a number of approaches to this. I have a high school tutorial StepByStepEquations.nb which you can down load from my web site given below. It shows how to do what you wish using regular Mathematica commands. David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ >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 ==----- > >