Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1995

[Date Index] [Thread Index] [Author Index]

Search the Archive


  • To: mathgroup at
  • Subject: [mg2465] inequalities
  • From: <rizzi at>
  • Date: Sun, 12 Nov 1995 22:27:15 -0500
  • Organization: C.I.C.G. , Grenoble

Let expr be an expression which depends on a and b.
How can I check the sign of expr (e.g. positive) when
a and b satisfy some inequality constraints?

Example:  f=(-9 - 23*c4 - 19*c4^2 - 5*c4^3 + 9*nu + 21*c4*nu + 15*c4^2*nu)
Check the sign of f when  -1 < c4 < Infinity and 0<= nu <= 0.5

Thanks in advance,

rizzi at

  • Prev by Date: Inequalities
  • Next by Date: Re: question: {a,b,c}->{{a,b},{b,c}}??
  • Previous by thread: Inequalities
  • Next by thread: Re: ROTATING ANIMATIONS in MMA?