Roger,
How about x #:~0,d ; has it been improved
automatically? This family member was a complete surprise
to me -- neat.
On Wed, 25 Oct 2006, Roger Hui wrote:
+ There are 3 verbs in the family:
+
+ x <[EMAIL PROTECTED] d integer quotient
+ d|x integer remainder
+ (0,d)#:x integer quotient and remainder
+
+ All three members of the family have been improved,
+ with the largest improvement occurring when d is
+ a positive power of 2.
+
+ Preliminary benchmarks:
+
+ x=: _2e5 + 1e6 [EMAIL PROTECTED] 4e5
+
+ ts=: 6!:2 , 7!:[EMAIL PROTECTED]
+ ts 'Expression'
+
+ Expression J6.02x J6.01 Ratio
+ x <[EMAIL PROTECTED] 256 0.0055291 4.19507e6 0.1623434 2.09723e7 29.36
5.00
+ 256 | x 0.0056425 4.19494e6 0.0257975 4.19494e6 4.57 1.00
+ 0 256 #: x 0.0092815 8.38925e6 0.0600597 8.38925e6 6.47 1.00
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