RE: [Axiom-developer] [Q] %pi() vs %pi difference ?

[Page, Bill]

Vladimir,

Briefly, %pi is a system defined macro for pi(). The
interpreter allows %pi() because macros can sometimes
have parameters. But both %pi and %pi() are treated exactly
the same as pi().

To see all the macros type

  )display macros

For more about pi() try

  )display op pi

Notice that there is also a special "domain" of Pi.

  )show Pi

which contains the function pi().

See previous discussion

http://lists.gnu.org/archive/html/axiom-developer/2005-01/msg00002.html
http://lists.gnu.org/archive/html/axiom-developer/2004-12/msg00283.html
http://lists.gnu.org/archive/html/axiom-developer/2004-12/msg00282.html

Regards,
Bill Page.

> -----Original Message-----
> From: Vladimir Bondarenko [mailto:address@hidden
> Sent: Friday, February 18, 2005 3:56 AM
> To: address@hidden
> Subject: [Axiom-developer] [Q] %pi() vs %pi difference ?
> 
> 
> Hello *,
> 
> Is there a difference between  %pi and %pi()?
> If yes, how to learn about it? If not, why we
> have both %pi() and %pi?
> 
> -> )set mess bot on
> 
> -> %pi() :: Complex Float
> 
>  Function Selection for pi
>       Arguments: ()
>       Default target type: Pi
> 
>  [1]  signature:   () -> HACKPI
>       implemented: slot $ from HACKPI
> 
> 
>  3.1415926535 897932385
>                                      Type: Complex Float
> 
> -> %pi :: Complex Float
> 
>  Function Selection for pi
>       Arguments: ()
>       Default target type: Pi
> 
>  [1]  signature:   () -> HACKPI
>       implemented: slot $ from HACKPI
> 
> 
>  3.1415926535 897932385
>                                    Type: Complex Float
> 
> Thank you in advance.
> 
> 
> Best,
> 
> Vladimir