Le forum de XCAS

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"

Hello I have problems defining a function in xcas
Syntax compatibility mode: xcas
Parse error line 1 column 20 at :=

Hello why the 3,4,5 lines don't print the value of 987? print( eval(varint,1 )); // 987 #cas function scope( varint ) print( varint ); // x unquote( varint ):=987; print( varint ); // print( eval(varint,1 )); // 987 print( eval(varint,2 )); return (varint); end; purge(x);scope(x); x [enter] 987, 987

Hello type(obj) almost always returns a data type as identifier, except in type(3%5) // returns > 15 type(%%%{3,[2,1]%%%}) // returns > 5 type(obj)+0 returns the numeric value of the data type subtype(obj) almost returns the numeric value of the subtype for list data, except in subtype(3.14159265358...

ok, "unapply" works fine

Hello list2mat and mat2list are very important commands, since there are commands that operate differently when they are lists or matrices, in some it applies linear and matrix algorithm rules in other operations with a list of elements. list2mat([9,8])> [[9,8]] "reverse" command, converts a flat li...

Hello I want to define a function where the expression is stored in a variable, but it does not call the content of the variable expr1 := 'x^3 - 2*x^2 + 1*x -1'; [enter] x^3-2*x^2+1*x-1 function f(x)=expr1; end; [enter] (x)->nop(expr1) excepted (x)->x^3-2*x^2+1*x-1 function f(x) expr1; end; f := fun...

Hello, What operating system does it work on?