[Jprogramming] newbie question

[David Lambert]

A global setting determines default floating print precision. Format 
accepts customization.  Rationals print to arbitrary base 10 representation.

    9!:10''      NB. show print precision
6

    1p1
3.14159

    9!:11 ] 16   NB. set default

    1x1
2.718281828459045

    NB. customize
    ":!.3 ] 2p1  NB. tauday.com
6.28


    NB. compute 32 digits of Euler's number
    50j48 ": ([: +/ %@:!)@i. 2 1 1 $ 30 35x
2.718281828459045235360287471352658602238073315078
2.718281828459045235360287471352662497757147554933
    NB.                           ^xxxxxxxxxxxxxxxx

    NB. view in fixed width please.

https://www.jsoftware.com/help/dictionary/dx009.htm


> Date: Sun, 15 May 2022 10:28:30 +0200
> From: yt<yves.tanguy at frmail.net>
> To:programming at jsoftware.com
> Subject: Re: [Jprogramming] newbie question
> Message-ID:<eee70943-3619-d8c6-fa5c-d71dc8d5faf3 at frmail.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>    Dear All,
>    i come back to start in J
>
>    in jijx>tour>overview
>        3p5       NB. Pi (3 * Pi ^ 5)
>    918.059
>
>    may be it is not the better way to find Pi :
>        1p1       NB. Pi (1 * Pi ^ 1)
>
>        1p1
>    3.14159