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
     1p1x
 |ill-formed number
 |      1p1x
 |      ^

 but this is ok for :
     ^/ 2 3 4
 2.41785e24
     ^/ 2 3 4x
 2417851639229258349412352
     3^4
 81
     2^81
 2.41785e24
     2^81x
 2417851639229258349412352

 why 1p1 is not good ?

 i have not this problem in APL

 Sorry for the inconvenience
 Regards,
 Yves
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