Hello
a possible problem is when an expression is applied in an inequality.
autosimplify(2);
(((x-2)/(x+2))<2)*(x+2) [Enter] ([(6+x)/(2+x),(12+2*x)/(2+x)])>0
is expected => (x-2) < (2*(x+2))
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- dim. mai 19, 2024 5:14 pm
- Forum : Xcas - English
- Sujet : Applying an expression to an inequality.
- Réponses : 0
- Vues : 46
- mar. mai 14, 2024 9:02 pm
- Forum : Xcas - English
- Sujet : ((a=b)*-1)|([a = 4,b = 3]) => -1 ?
- Réponses : 3
- Vues : 140
Re: ((a=b)*-1)|([a = 4,b = 3]) => -1 ?
I have noticed that depending on the simplification flag, an assignment is performed.
You can improve the xcas interpreter by adding a flag to the system that allows you to decide whether you want the equal sign to always act as an assignment or not,
You can improve the xcas interpreter by adding a flag to the system that allows you to decide whether you want the equal sign to always act as an assignment or not,
- mar. mai 14, 2024 12:28 am
- Forum : Xcas - English
- Sujet : ((a=b)*-1)|([a = 4,b = 3]) => -1 ?
- Réponses : 3
- Vues : 140
Re: ((a=b)*-1)|([a = 4,b = 3]) => -1 ?
Another possible problem is when an expression is applied in an inequality.
(((x-2)/(x+2))<2)*(x+2) [Enter] ([(6+x)/(2+x),(12+2*x)/(2+x)])>0
=> (x-2) < (2*(x+2))
(((x-2)/(x+2))<2)*(x+2) [Enter] ([(6+x)/(2+x),(12+2*x)/(2+x)])>0
=> (x-2) < (2*(x+2))
- dim. mai 12, 2024 2:33 pm
- Forum : Xcas - English
- Sujet : ifactor(#) => #1 * #2 * ... * #n
- Réponses : 2
- Vues : 367
Re: ifactor(#) => #1 * #2 * ... * #n
Tested on version 1.99.0 - 990 and it works excellently
ifactors(18,'*') [Enter] Returns 2*3*3
ifactors(18,'*') [Enter] Returns 2*3*3
- sam. mai 11, 2024 11:13 pm
- Forum : Xcas - English
- Sujet : ((a=b)*-1)|([a = 4,b = 3]) => -1 ?
- Réponses : 3
- Vues : 140
((a=b)*-1)|([a = 4,b = 3]) => -1 ?
Hello with autosimplify flag: none ((a=b)*-1 [enter] returns -a=(-b) ((a>b)*-1 [enter] returns (-b)>(-a) ((a=b)*-1)|([a = 4,b = 3]) [enter] returns (-4=-3) ((a>b)*-1)|([a = 4,b = 3]) [enter] returns (true)*-1 => -1 ? // Shouldn't the left side be resolved first? ((a>b)*-1)|([a = 4,b = 3]) => (-b)>(-...
- jeu. mai 02, 2024 2:13 pm
- Forum : Xcas - English
- Sujet : xCAS to be used in mathematics learning and teaching
- Réponses : 0
- Vues : 158
xCAS to be used in mathematics learning and teaching
Hello I believe that a 'CAS' to be used in learning and teaching mathematics should have a form in which the user tells the machine what to do, so that the machine does not return automatic processes that are meaningless to the learner. This implies that the input is not interpreted except for trivi...
- sam. avr. 20, 2024 1:44 am
- Forum : Xcas - English
- Sujet : ifactor(#) => #1 * #2 * ... * #n
- Réponses : 2
- Vues : 367
ifactor(#) => #1 * #2 * ... * #n
Hello
It is important to show the complete factorization of a number, so is there a possibility of obtaining the product of factors without powers?
ifactor(18) [enter] 2^1*3^2
ifactor(18, '*') [enter] '2*3*3'
It is important to show the complete factorization of a number, so is there a possibility of obtaining the product of factors without powers?
ifactor(18) [enter] 2^1*3^2
ifactor(18, '*') [enter] '2*3*3'
- jeu. avr. 04, 2024 5:36 pm
- Forum : Xcas
- Sujet : Suggestions d'amélioration pour Xcas Windows
- Réponses : 8
- Vues : 2665
Re: Suggestions d'amélioration pour Xcas Windows
Greetings Mr. Parisse, it is good that the GUI can be contracted with third parties, that is, seek sponsorship to be able to pay for these services. The Xcas online user interface works well, but in underdeveloped countries like Colombia we do not have guaranteed internet service during a class sess...
- dim. mars 31, 2024 4:55 pm
- Forum : Xcas - English
- Sujet : baseexpand() cmd
- Réponses : 0
- Vues : 409
baseexpand() cmd
Hello Based on order powexpand(a^(m-n)) returns a^m/a^n In step-by-step algebraic manipulation I believe that a command is needed to expand an exponent, in a base that can be a product, division or expression. I don't know if baseexpand is a good name 0: powexpand(a^(m-n)) returns a^m/a^n 1: baseexp...
- dim. mars 31, 2024 5:13 am
- Forum : Xcas - English
- Sujet : Tems of algebraic Expresion
- Réponses : 0
- Vues : 401
Tems of algebraic Expresion
very good morning Within algebraic manipulation it is important to identify the terms or addends of an algebraic expression, there is already a command to separate the factors split(), I think that Xcas should provide us with a new command terms() so that students identify the terms after a manual p...
- jeu. mars 28, 2024 8:15 pm
- Forum : Xcas - English
- Sujet : autosimplify on [m] (menu) button
- Réponses : 2
- Vues : 902
Re: autosimplify on [m] (menu) button
Is it possible to add in the [M] eq menu an option to convert two-dimensional notation to one-dimensional and live in the outputs of each line?
(1D)
a^(b^c)
(2D)
__ c
_ b
a
(1D)
a^(b^c)
(2D)
__ c
_ b
a
- jeu. mars 28, 2024 4:51 pm
- Forum : Xcas - English
- Sujet : xcasjs interface in Spanish.
- Réponses : 1
- Vues : 827
xcasjs interface in Spanish.
Hello I am a professor of algorithmic logic and programming in first university level courses, in these last two years I have been dictating the class sessions with c#, but I would like the algorithmic thinking to go more of the numerical, this is symbolic numerical. I am testing the xcasjs interfac...
- sam. mars 23, 2024 2:09 pm
- Forum : Xcas - English
- Sujet : autosimplify on [m] (menu) button
- Réponses : 2
- Vues : 902
autosimplify on [m] (menu) button
Hello In the PC version of Xas, in each entry and exit line there is a [m] (menu) button, I think a new submenu is required [AutoSimplify] 1: Do not simplify 2: Regroup 3: Simplify I think it is practical to go and change the simplification flag panel Ex1: subst(a+b,[a = (y+x),b = x]) => [Do not sim...
- sam. mars 23, 2024 2:02 pm
- Forum : Xcas - English
- Sujet : low level substitution
- Réponses : 9
- Vues : 1805
Re: low level substitution
Hi, why is the following statement not returning 'y+x+x'?
subst(a+b,[a = (y+x),b = x],quote)
subst(a+b,[a = (y+x),b = x],quote)
- mar. avr. 25, 2023 7:20 pm
- Forum : Xcas - English
- Sujet : XCAS GUI Spanish Translation
- Réponses : 9
- Vues : 1532
Re: XCAS GUI Spanish Translation
Hello Bernard, I can't update the language file ^, can you please update the translation file in the next update to check the progress of the translation of the following file
Thank you so much
file es.po updated =>
https://www.eonicasys.com.co/math/syste ... hers/es.po
Thank you so much
file es.po updated =>
https://www.eonicasys.com.co/math/syste ... hers/es.po