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

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 ==-----

```

• Prev by Date: Re: Finding Solution to Set of Equations with Inequality Constraints
• Next by Date: Re: Automatic Display in MatrixForm
• Previous by thread: Re: Freeing memory in Mathematica
• Next by thread: Re: Manipulation of equations and inequalities in "high-school style"