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4000
Seconds
Gaussian beam
3000
Explicit
2000
1000
0
100 200 300 400 500 600 700 800
Size (N)
a
Log10(Seconds)
4
3
Gaussian beam
2
Explicit
1
0
0
1
2
3
Log2(N/100)
b
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pdÜ
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1.0
0.8
0.6
0.4
0.2
0
100 200 300 400 500 600 700 800
Size (N)
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