01-06-2019, 07:09 PM

01-06-2019, 09:35 PM

Xcas with GIAC kernel

[]==[] [enter] returns true , ok compare two objects and these are equal

HP-Prime with GIAC kernel, and CAS MODE

[]==[] [enter] returns 1 =( Synonym of true, Although I do not know why the history shows [] as [[]] it seems to be another BUG related to the visualization of objects in the history view

[up][up][copy] ([]) = [] [enter] [[]] ??

This is an BUG with the COPY function that I already reported a long time ago and do not a solution.

Sometimes copy well

[]==[] [enter] [up][up][copy] (([])==[]) [enter] true

part('RANDOM',2) [enter] "error the first argument must be a valid math expression"

part('RANDOM(a)') [enter] 2, another BUG founds, must return 1

part('RANDOM(a)',0) [enter] "of" Another BUG founds, must return "RANDOM"

part('RANDOM(a)',1) [enter] BUG, a ok

part('5!') [enter] 1 ok, one parts

part('5!',0) [enter] "factorial" ok (operator)

part('5!',1) [enter] 5 ok (operating)

part('abs(-a)') [enter] 1 ok, one parts

part('abs(-a)',0) [enter] "ABS"

part('abs(-a)',1) [enter] -a ok

part(-a) [enter] 1 ok, one parts, - it is an internal sign

part(-a,0) [enter] "-" ok

part(-a,1) [enter] a ok

test online part cmd

session Xcas

[]==[] [enter] returns true , ok compare two objects and these are equal

HP-Prime with GIAC kernel, and CAS MODE

[]==[] [enter] returns 1 =( Synonym of true, Although I do not know why the history shows [] as [[]] it seems to be another BUG related to the visualization of objects in the history view

[up][up][copy] ([]) = [] [enter] [[]] ??

This is an BUG with the COPY function that I already reported a long time ago and do not a solution.

Sometimes copy well

[]==[] [enter] [up][up][copy] (([])==[]) [enter] true

part('RANDOM',2) [enter] "error the first argument must be a valid math expression"

part('RANDOM(a)') [enter] 2, another BUG founds, must return 1

part('RANDOM(a)',0) [enter] "of" Another BUG founds, must return "RANDOM"

part('RANDOM(a)',1) [enter] BUG, a ok

part('5!') [enter] 1 ok, one parts

part('5!',0) [enter] "factorial" ok (operator)

part('5!',1) [enter] 5 ok (operating)

part('abs(-a)') [enter] 1 ok, one parts

part('abs(-a)',0) [enter] "ABS"

part('abs(-a)',1) [enter] -a ok

part(-a) [enter] 1 ok, one parts, - it is an internal sign

part(-a,0) [enter] "-" ok

part(-a,1) [enter] a ok

test online part cmd

session Xcas

01-07-2019, 07:14 PM

RANDOM is not a CAS command, try type('RANDOM')

01-07-2019, 10:55 PM

RANDOM is a NUMERIC command (HOME mode), type recognizes it as IDENTIFIER and it does not work, this BUG is caused by not incorporating the complete GIAC commands, this is an argument for the development group of the numerical part, try to incorporate the complete catalog of GIAC, except for what is impossible due to hardware or license problems

random is a CAS cmd, but it is not visible in the hpprime, like others, this causes inconsistencies, failures

random is a CAS cmd, but it is not visible in the hpprime, like others, this causes inconsistencies, failures

01-08-2019, 01:19 AM

(01-07-2019 07:14 PM)parisse Wrote: [ -> ]RANDOM is not a CAS command, try type('RANDOM')

I'm not sure what you're suggesting here.

I can't test for type('RANDOM') because I'm not in control of what users might supply as a parameter when they use my program. My program expects an expression (DOM_SYMBOLIC) as its parameter and type(part('expression',0)) is DOM_STRING for every expression.

01-08-2019, 01:40 AM

PS: part('NOT 5') --> DOM_SYMBOLIC as expected but part('NOT',0) gives a Syntax Error.

(Which is one for Tim, not parisse, I suspect.)

(Which is one for Tim, not parisse, I suspect.)

01-08-2019, 01:45 AM

(01-06-2019 09:35 PM)compsystems Wrote: [ -> ]part('RANDOM(a)') [enter] 2, another BUG founds, must return 1

part(expr), i.e. with just one parameter, seems to be a synonym for length(expr). So an undocumented feature rather than a bug.

01-09-2019, 03:59 PM

Hi!, BruceH :

Conceptually the 'part' signify ...

Returns the nth subexpression of an expression. part(Expr, Integer)

Examples:

part(sin(x)+cos(x),1) returns sin(x)

part(sin(x)+cos(x),2) returns cos(x)

Conceptually the 'part' signify ...

Returns the nth subexpression of an expression. part(Expr, Integer)

Examples:

part(sin(x)+cos(x),1) returns sin(x)

part(sin(x)+cos(x),2) returns cos(x)