RE: Simplifying algebraic expr: howto?
- To: mathgroup@smc.vnet.net
- Subject: [mg11385] RE: [mg11370] Simplifying algebraic expr: howto?
- From: jmt <jmthomas@cybercable.tm.fr>
- Date: Sun, 8 Mar 1998 20:13:06 -0500
- Organization: TeA
Try this: w=u (nx u+ny v) (*definition*) r=nx u +ny v->theta (*transformation rule*) w/.r Hope this helps, ----------------------------------------------- Jean-Marie THOMAS Conseil et Audit en Ingenierie de Calcul www.cybercable.tm.fr/~jmthomas ------------------------------------------------ -----Message d'origine----- De: Daniel G. Hyams [SMTP:dgh2@Ra.MsState.EDU] Date: samedi 7 mars 1998 08:07 A: mathgroup@smc.vnet.net Objet: [mg11370] Simplifying algebraic expr: howto? I apologize for the (probable) simpleness of this questions, but I am new to mathamatica... I have an expression (for example): u*(nx*u + ny*v) ---- (1) and a definition: theta = nx*u+ny*v How do I get mathematica to simplify the expression (1) such that it returns: u*theta ? ----------------------------------------------------------- Daniel G. Hyams email: dhyams@ebicom.net phone: (601) 323-4198 -----------------------------------------------------------