Macsyma: "Eliminate" Problem

Thread View: net.math.symbolic

1 messages

[T] Back to Threads [V] Tree View [G] Group Articles

1 total messages Started by Brint Cooper Mon, 25 Mar 1985 18:35

#61

Author: Brint Cooper
Date: Mon, 25 Mar 1985 18:35

44 lines
1484 bytes

Given the following equations:

	v = w**2 - p

	x = v**2 - p

	y = x**2 - p

	z = y**2 - p

I re-write them as Macsyma "expressions":

	e1:	v - w**2 + p

	e2: 	x - v**2 + p

	e3:	y - x**2 + p

	e4:	z - y**2 + p

In Macsyma, I invoke "eliminate([e1,e2],[v])" which yields an
expression, say e5, involving x, w, and p.

Similarly, I invoke "eliminate([e3,e4],[y]" which yields an expression,
say e6, involving x, z, and p.

NOW:  When I try to invoke "eliminate" on e5 and e6 to eliminate x, it
returns the list [1].  

Why?

Thanks,

Brint
	 ARPA:  abc@brl.arpa
	 UUCP:  ...{decvax,cbosgd}!brl-bmd!abc

		  Dr Brinton Cooper
		  U.S. Army Ballistic Research Laboratory
		  Attn: AMXBR-SECAD (Cooper)
		  Aberdeen Proving Ground, MD  21005-5066

Offc:    301 278-6883    AV:  283-6883     FTS: 939-6883
Home:	 301-879-8927

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads