Re: Re: Exact Symbolic Notation

*To*: mathgroup at smc.vnet.net*Subject*: [mg56354] Re: [mg56291] Re: [mg56269] Exact Symbolic Notation*From*: Chris Chiasson <chris.chiasson at gmail.com>*Date*: Fri, 22 Apr 2005 06:23:53 -0400 (EDT)*References*: <200504210936.FAA05018@smc.vnet.net>*Reply-to*: Chris Chiasson <chris.chiasson at gmail.com>*Sender*: owner-wri-mathgroup at wolfram.com

Notation[Power[a_,\[Prime]]<==Derivative[1][a_]] The LHS, if entered from the Notation pallete as it would appear after making boxes from it, is a good start to making proper looking derivatives. On 4/21/05, David Park <djmp at earthlink.net> wrote: > Alex, > > I have to weigh in on this, although I don't know if I'll be much help. > > You could try the Notations package that comes with Mathematica. This can be > used to turn expressions into symbols. I find it rather difficult to use but > it does work for some people. I think the Notations package (or the > MakeExpression statement) would be necessary to underline only part of a > symbol. Maybe someone in the group will show you how to do it. > > For subscripted symbols you could try the SubscriptSymbols package by Ted > Ersek on MathSource. It uses ideas of Carl Woll and also manages the use of > the Notations package to symbolize subscripted variables if you wish to go > that far. > > In Mathematica p'[x] means the derivative of f with respect to the argument > and > > p' // FullForm > Derivative[1][p] > > I suppose one could get away with using that... > > Solve[p'y == 3x, p'] > {{p' -> (3*x)/y}} > > but I suspect that difficulties lurk somewhere. I wouldn't use it. > > There is a prime character that can be entered as \[Prime], or esc ' esc, so > you could use > > p\[Prime] > > but this displays with the prime sitting on the floor instead of being > raised to it's normal position. I think this is a definite deficiency in > Mathematica. Primed variables are very common in text books and in the > mathematical literature. Mathematica has a prime character. Why doesn't WRI > make it display correctly? I've complained about this a number of times but > so far you are the only other Mathematica user I've come across who seems to > want to use primed symbols! > > I also think Mathematica would be greatly enhanced if the palette > characters, the Script, DoubleStruck and Gothic were better formed and > somewhat larger than their present size. These used to be better in earlier > versions of Mathematica and somewhere around Version 4 they got worse and > not as usable. It would also be nice if they had an additional larger bold > sans serif set of characters that could be used for vectors, matrices etc. > > Over the years I've learned that it is almost always possible to manipulate > expressions to get them into textbook form, but the inadequate extended > character sets are still a major problem. One that could be easily fixed. > > David Park > djmp at earthlink.net > http://home.earthlink.net/~djmp/ > > > From: Alexandre Costa [mailto:costa at deq.uem.br] To: mathgroup at smc.vnet.net > To: mathgroup at smc.vnet.net > > > Dear Group, > It is a pleasure talk to you all again. > My plain question is: > I want to use some "exact" notation with Mathematica. For instance, > I want to use variables like " p' " instead of "pline" (or something like > that). > Also I want to use P2 (with the 2 underlined). The last option works in some > calculations but not in all of them (Why?). > Finally I want to define f1[x] as a function with the 1 underlined(Why > is not working?). > > Any enlightment on these subject are very welcome. > Thanks, > Alex > > -- Chris Chiasson Kettering University Mechanical Engineering Graduate Student 1 810 265 3161

**References**:**Re: Exact Symbolic Notation***From:*"David Park" <djmp@earthlink.net>