Help / Release / J 6.02 / u/. Improved
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u/. Improved |
initial writing: 2007-06-15 |
The monad u/. (Oblique) has been made faster and leaner for the general case. Specific cases of u/. supported by special code remain unchanged. The following benchmarks demonstrate the improvement:
y=: 200 5000 ?@$ 0 ts=: 6!:2 , 7!:2@] NB. time and space ts 'Expression'
| Expression | J 6.02 | J 6.01 | Ratio | |||||||||
| </.y | 0.083978 | 3.24223e7 | 1.368435 | 1.58000e8 | 16.30 | 4.87 | ||||||
| ]/.y | 0.096348 | 3.04436e7 | 1.401710 | 1.58000e8 | 14.55 | 5.19 | ||||||