Le forum de XCAS

Hello
I'm following a numPI tutorial that runs on Visual Studio code
I also want to see GIAC working on VSC one day.

https://www.youtube.com/watch?v=fS7zwlxmOyU

Hello Some ideas for the fixed installation of the CAS version on PC a: I note that in recent versions XCAS can import work sessions from certain calculators, it should also import an XCAS shell. The XCAS-pc interface is a SHELL with numbered inputs and outputs. I think it would be very important fo...

Hello. in the following blog there is information on how to graph relations maths. Please inform me if there is an app like lucidchart that makes sagittal diagrams, I mean, one between the sets and the relations, later, that graphs the diagram. or how can it be done with Xcas https://3.bp.blogspot.c...

factor( ((x+2)^2) = 4 ) [enter] Run ifactor(4) for integer factorization. =(

factor( ((x+2)^2) - 4 ) [enter] x*(x+4)

Separating expressions and then joining them is easy through a program, but other CASs do it automatically.

I think many would like this feature by default.

Hi

In the expression ((x+2)^2)=4, it can be verified that if the right member is a number, perform the operation [factor, plot, ...] ("pass the member with the opposite sign to the left side"), as other CASs do.

factor( ((x+2)^2)=4 ) → x*(x+4)
plot( ((x+2)^2)=4 )

Hello Bernard Xcas could have a basic analysis of expression in the TOOLBOX menu, similar to what Wolfram does. Where an equation is entered for example ((x+2)^2)=4 and it shows for example its factorization (with commentary line), expansion, solutions and graph, just by entering the expression in t...

Hi,
add title if it's a version cygwin or mingw

Xcas 1.7.0-13 (mingw Win32)
Xcas 1.7.0-13 (cygwin Win32)

Thanks

64 bits cygwin version, ok =]

64 bits cygwin version ok

Hello, a new option for args can be args[0] equivalent to determining the number of arguments size( args ) //#cas f( a, b, c ):= begin local y; y := args; print( size( args ) ); // args: 4 // print( args[ 0 ] ); // 4 print( args[ 1 ] ); // function name: f print( args[ 2 ] ); // firts arg: 9 print( ...

Updating documentation takes time, but if these little ones get lost, it will be more difficult It seems to me that it is important to update this command at least in the French document. WHEN CMD 4 arguments 1: test to solve 2: action for true 3: action for false 4: optional if you cannot solve the...

when already accepts a 4th argument.
> but I think, it is not documented yet.

https://www-fourier.ujf-grenoble.fr/~pa ... _default52

Hello, in the case of the first post, this is the template that Xcas puts in the installation version for PC Prg Menu New prg about When cmd, I think it is very important to define a fourth parameter, that is, if it cannot evaluate to a logical value (firts arg), execute the fourth argument, this is...

this way it works fine.
purge(x); f(x); [Enter] returns ((x)? true : false)

and why doesn't it return an error message ""Unable to check test Error: Bad Argument Value"