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MathGroup Archive 2001

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Re: Second-degree polynomial

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31408] Re: Second-degree polynomial
  • From: Matthias.Bode at oppenheim.de
  • Date: Sat, 3 Nov 2001 05:29:14 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello Jamal,

for y in eqn1 identical with y in eqn2 try:

Clear[a, b, c, x, y];
eqn1 = x + x*a + x*a^2; 
eqn2 = a*Sqrt[x] - b*x + c;
quot = Simplify[eqn1/eqn2]
Solve[quot == 1, x]
Solve[quot == 1, a]
Solve[quot == 1, b]
Solve[quot == 1, c]

to solve your system for your variables.

To analyse each equation use:

Solve[eqn1 == y, your variable]
Solve[eqn2 == y, your variable]

Best regards,

Matthias Bode
Sal. Oppenheim jr. & Cie. KGaA
Koenigsberger Strasse 29
D-60487 Frankfurt am Main
GERMANY
Tel.: +49(0)69 71 34 53 80
Mobile: +49(0)172 6 74 95 77
Fax: +49(0)69 71 34 95 380
E-mail: matthias.bode at oppenheim.de
Internet: http://www.oppenheim.de


-----Ursprüngliche Nachricht-----
Von: elsanosi at chello.hu [mailto:elsanosi at chello.hu]
Gesendet: Donnerstag, 1. November 2001 01:59
An: mathgroup at smc.vnet.net
Betreff: [mg31398] Second-degree polynomial



Dear Sir

My name is Jamal Elsanosi. I'm postgraduate student in petroleum 
engineering in university of Miskolc-Hungary

I appreciate you if could help me to find the relationship between the 
two equations
1-    y = x + x * a + x * a^2          and
2-    y = a * sqrt(x) - b * x + c

I'm looking for your reply in the earliest time
        
Best regards
Jamal Elsanosi


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