In J 4.06d, the sin of pi was zero:
(9!:14'') , '/' , ": 9!:12''
4.06/2001-07-10/14:00/6
1 o. 1p1
0
(-~ 2.5) -:&:(3!:1) 1 o. 1p1 NB. -~ 2.5 is floating-point 0
1
-Dan
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