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];.0 Improved |
initial writing: 2001-07-10 |
The 0-cut ];.0 (also [)
on vector and matrix right arguments is now implemented by special code,
resulting in time/space savings. For example:
v=: 1e4$'asdf' ] p=: ?.2##v 1315 7556 m=: ?111 97$1e6 ] q=: ?. 2 2$$m 14 73 50 51 ts=: 6!:2 , 7!:2@]
ts | J4.06 | J5.01 |
((+i.)/p){v | 0.000554260 75136 | 0.000556495 75136 |
(,.p) ];.0 v | 6.06781e_4 107840 | 3.68762e_5 9344 |
q ];.0 m | 4.16254e_5 10304 | 3.07302e_5 9088 |