Re: Solve bug?

*To*: mathgroup at smc.vnet.net*Subject*: [mg52765] Re: [mg52705] Solve bug?*From*: yehuda ben-shimol <benshimo at bgu.ac.il>*Date*: Mon, 13 Dec 2004 04:21:59 -0500 (EST)*References*: <200412100123.UAA18967@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Your problem is working fine (version 5.0.0) with the result of {{x -> 27.25\[InvisibleSpace] - 2.62145 \[ImaginaryI], y -> 53.125\[InvisibleSpace] - 19.0842 \[ImaginaryI]}, {x -> 27.25\[InvisibleSpace] + 2.62145 \[ImaginaryI], y -> 53.125\[InvisibleSpace] + 19.0842 \[ImaginaryI]}} yehuda paul at selfreferral.com wrote: >Solve seems to be returning an invalid answer when I do this: > >c1 = (-50 + x)^2 + (-50 + y)^2 == 156.25 >c2 = (-4.5 + x)^2 + (-56.25 + y)^2 == 156.25 > >Solve[{c1,c2}] >{{x -> 16, y -> 43.75}, {x -> 84, y -> 43.75}} > >This answer is so wrong!!?? >Those two points are completely off. Not even close. > >c1 and c2 are the equations of two overlapping circles. >Use ImplicitPlot to verify this fact. >Why can't Mathematica resolve this simple sytem of equations correctly? > >If I am doing something wrong please tell me what it is. > >Also how can I cut and paste text from a mathematica notebook without >getting all the slashes? >Your help is greatly appreciated. > >Regards, >Paul > > >

**References**:**Solve bug?***From:*paul@selfreferral.com