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o.
Improved
|
initial writing: 2002-11-13
last updated: 2004-10-26
|
The dyad o. circle function has been made more efficient
in time and space on real arguments with real results. For example:
x=: 0.001*_500+?1e5$1000
y=: (*x)+x+0=x
z=: |y
ts=: 6!:2 , 7!:2@] NB. time and space
ts 'expression'
| Expression | |
J 5.02 | |
J 5.01 | |
Ratio |
| _7 o. x | |
0.0262740 1.04922e6 | |
0.228579 5.24358e6 | |
8.70 5.00 |
| _6 o. z | |
0.0317026 1.04922e6 | |
0.301152 5.24358e6 | |
9.50 5.00 |
| _5 o. x | |
0.0333802 1.04922e6 | |
0.275311 5.24358e6 | |
8.25 5.00 |
| _4 o. y | |
0.0187753 1.04922e6 | |
0.226301 5.24358e6 | |
12.05 5.00 |
| _3 o. x | |
0.0348033 1.04922e6 | |
0.292260 5.24358e6 | |
8.40 5.00 |
| _2 o. x | |
0.0566949 1.04922e6 | |
0.182072 5.24358e6 | |
3.21 5.00 |
| _1 o. x | |
0.0558347 1.04922e6 | |
0.163727 5.24358e6 | |
2.93 5.00 |
| 0 o. x | |
0.0129550 1.04922e6 | |
0.169990 5.24358e6 | |
13.12 5.00 |
| 1 o. x | |
0.0248325 1.04922e6 | |
0.140806 5.24358e6 | |
5.67 5.00 |
| 2 o. x | |
0.0261544 1.04922e6 | |
0.139136 5.24358e6 | |
5.32 5.00 |
| 3 o. x | |
0.0322787 1.04922e6 | |
0.207790 5.24358e6 | |
6.44 5.00 |
| 4 o. x | |
0.0129360 1.04922e6 | |
0.182361 5.24358e6 | |
14.10 5.00 |
| 5 o. x | |
0.0851955 1.04922e6 | |
0.305229 5.24358e6 | |
3.58 5.00 |
| 6 o. x | |
0.0877715 1.04922e6 | |
0.298816 5.24358e6 | |
3.40 5.00 |
| 7 o. x | |
0.0955809 1.04922e6 | |
0.519837 5.24358e6 | |
5.44 5.00 |
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