Re: calculate vertex of a parabola
- To: mathgroup at smc.vnet.net
- Subject: [mg112742] Re: calculate vertex of a parabola
- From: Helen Read <readhpr at gmail.com>
- Date: Wed, 29 Sep 2010 04:12:35 -0400 (EDT)
- References: <i7sen7$ppb$1@smc.vnet.net>
On 9/28/2010 6:06 AM, Murray Eisenberg wrote: > In his "Presentations" add-on application, David Park has a function > CompleteTheSquare that can save you the effort of carrying out the > manipulations: > > <<Presentations` > > CompleteTheSquare[a x^2 + b x + c, x] // InputForm > -b^2/(4*a) + c + a*(b/(2*a) + x)^2 Personally, I'd like my students to understand how to do it the more effortful way :-) -- Helen Read University of Vermont
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