Re: Solve and Piecewise Functions

*To*: mathgroup at smc.vnet.net*Subject*: [mg76425] Re: [mg76392] Solve and Piecewise Functions*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Tue, 22 May 2007 02:44:32 -0400 (EDT)*Reply-to*: hanlonr at cox.net

Use Reduce rather than Solve. g=Piecewise[{{0,x<0},{2 x-x^2,0<=x<4},{16 x-x^2,x>=4}}]; h=x-2; Reduce[g>=h,x] x < 0 || 4 <= x <= (1/2)*(15 + Sqrt[233]) || 0 <= x <= 2 Bob Hanlon ---- Michael Madrid <mfmadrid at yahoo.com> wrote: > > I was hoping something like this: > > > Clear["*"] > g=Piecewise[{{0,x<0},{2 x-x^2,0<=x<4},{16 x-x^2,x=C2=B34}}] > h=x-2; > Solve[g=C5=A0h,x] > > > would give me a meaningful answer. But all I get is this: > > > Solve[\[Piecewise]{ > {0, x<0}, > {2 x-x2, 0=C2=A3x<4}, > {16 x-x2, x=C2=B34} > }=C5=A0-2+x,x] > > Any thoughts on how to do this? >