solution to the problem of preassigned variables Z1:=3+4*i in HOME mode

05232018, 04:29 PM
(This post was last modified: 06172018 02:39 AM by compsystems.)
Post: #1




solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
It is known that the logic of the HPPRIME HOME mode inherit from HP38/39/40 calcs of preassigning variables to objects,
A, B… Z for reals, Z0, … Z9 for complex, L0, L1… L9 for lists, M0, M1… M9 for vectors or matrices etc., affect the logic of the programs in CAS, many students do not know why their source code fails to execute it. The solution is to use Ａ ... Ｚ ０...９ characters and numbers UNICODE and nonASCII A ... Z, 0, ..., 9 ０: FF10 .. ９: FF19 Ａ: FF21 Ｚ: FF3A Ａ≠A Ｌ０≠L0 Ｍ０≠M0 This involves break free the characters A..Z 0...9 ASCII and their combinations as for example L0, M0 to store any object This is done by the Classpad calculator, in the following image you can see that the variable in italics is different from the normal variable ＡＢ=Ａ*Ｂ ≠ AB ≠ A*B the unicodefont of the hpprime ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ０１２３４５６７８９ ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ０１２３４５６７８９are similar to the ASCII ABCDEFGHIJKLMNOPWQRSTUVWXYZ0123456789, please hpp_team modify as it appears in this forum, making the characters visualized for example in italics and/or bold ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ Good Idea? +1 

07212018, 04:17 AM
Post: #2




RE: solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
It would be very good, great idea, it is necessary to change the typeface and even better so in bold, it would be much easier and intuitive to work the HP PRime.


07212018, 05:40 AM
Post: #3




RE: solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
I don't like the idea. I like the Vars Menu and all of the preassigned variables. It's quite a convenient method to access data via typing them into the stack. I can type [Alpha] [ M ] 1 [ENTER] to recall a stored matrix for example. That's only 4 keystrokes.


07212018, 07:39 AM
(This post was last modified: 07212018 08:09 AM by ijabbott.)
Post: #4




RE: solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
Those characters are "Fullwidth Forms" and are really intended for typesetting Chinese/Japanese/Korean (CJK) texts as they are the same width as Chinese characters.
The Classpad does not use UNICODE. It has a more limited character set and uses a custom multibyte encoding (not UTF8). — Ian Abbott 

07242018, 05:27 PM
(This post was last modified: 07242018 05:39 PM by compsystems.)
Post: #5




RE: solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
(07212018 05:40 AM)Carsen Wrote: I don't like the idea. I like the Vars Menu and all of the preassigned variables. It's quite a convenient method to access data via typing them into the stack. I can type [Alpha] [ M ] 1 [ENTER] to recall a stored matrix for example. That's only 4 keystrokes. With [SHIFT] + [4 / MATRIX] displays the list of variables reserved for arrays. With the idea that I propose solves the problems of defining reserved variables using Latin characters please see: http://www.hpmuseum.org/forum/thread10494.html CAS: V1(X,Y):=X2*Y=7; V2(X,Y):=5*X3*Y=2; returns (X,Y)>false,(X,Y)>false ? with Ｖ≠ V, Ｘ≠Y, Ｙ≠Y CAS: Ｖ1(Ｘ,Y):=Ｘ2*Ｙ=7; Ｖ2(Ｘ,Ｙ):=5*Ｘ3*Ｙ=2; // ok 

07242018, 09:50 PM
Post: #6




RE: solution to the problem of preassigned variables Z1:=3+4*i in HOME mode
(07242018 05:27 PM)compsystems Wrote: With [SHIFT] + [4 / MATRIX] displays the list of variables reserved for arrays. Correct, however recalling a matrix into the stack cannot be done with [Shift] 4 (as far as I know). Pressing [Alpha] M 1 [ENTER] in Home while in RPN mode recalls the matrix onto the stack, ready for a calculation. Typing [Alpha] M 1 in Home while in Textbook or Algebraic mode is all it takes to use a matrix in a calculation. This is what makes the preassigned variables so convenient in my eyes. (07242018 05:27 PM)compsystems Wrote: CAS: I have a question. Why enter these equations into V1, V2, etc... on the Home and CAS view? 

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