Skip to content

Commit 3342574

Browse files
author
Dave Bort
committed
Define the new Rand and Source types to allow creating
isolated sources of random values. Add normal and exponential distributions. Add some tests for the normal and exponential distributions. R=rsc APPROVED=rsc DELTA=1005 (904 added, 80 deleted, 21 changed) OCL=35501 CL=35779
1 parent 1832531 commit 3342574

File tree

6 files changed

+921
-97
lines changed

6 files changed

+921
-97
lines changed

‎src/pkg/rand/Makefile

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,9 @@ include $(GOROOT)/src/Make.$(GOARCH)
66

77
TARG=rand
88
GOFILES=\
9+
exp.go\
10+
normal.go\
11+
rand.go\
912
rng.go\
1013

1114
include $(GOROOT)/src/Make.pkg

‎src/pkg/rand/exp.go

Lines changed: 223 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,223 @@
1+
// Copyright 2009 The Go Authors. All rights reserved.
2+
// Use of this source code is governed by a BSD-style
3+
// license that can be found in the LICENSE file.
4+
5+
package rand
6+
7+
import (
8+
"math";
9+
)
10+
11+
/*
12+
* Exponential distribution
13+
*
14+
* See "The Ziggurat Method for Generating Random Variables"
15+
* (Marsaglia & Tsang, 2000)
16+
* http://www.jstatsoft.org/v05/i08/paper [pdf]
17+
*/
18+
19+
const (
20+
re = 7.69711747013104972;
21+
)
22+
23+
// ExpFloat64 returns an exponentially distributed float64 in the range
24+
// (0, +math.MaxFloat64] with an exponential distribution whose rate parameter
25+
// (lambda) is 1 and whose mean is 1/lambda (1).
26+
// To produce a distribution with a different rate parameter,
27+
// callers can adjust the output using:
28+
//
29+
// sample = ExpFloat64() / desiredRateParameter
30+
//
31+
func (r *Rand) ExpFloat64() float64 {
32+
for {
33+
j := r.Uint32();
34+
i := j&0xFF;
35+
x := float64(j)*float64(we[i]);
36+
if j < ke[i] {
37+
return x;
38+
}
39+
if i == 0 {
40+
return re - math.Log(r.Float64());
41+
}
42+
if fe[i] + float32(r.Float64())*(fe[i-1]-fe[i]) < float32(math.Exp(-x)) {
43+
return x;
44+
}
45+
}
46+
panic("unreachable");
47+
}
48+
49+
var ke = [256]uint32{
50+
0xe290a139, 0x0, 0x9beadebc, 0xc377ac71, 0xd4ddb990,
51+
0xde893fb8, 0xe4a8e87c, 0xe8dff16a, 0xebf2deab, 0xee49a6e8,
52+
0xf0204efd, 0xf19bdb8e, 0xf2d458bb, 0xf3da104b, 0xf4b86d78,
53+
0xf577ad8a, 0xf61de83d, 0xf6afb784, 0xf730a573, 0xf7a37651,
54+
0xf80a5bb6, 0xf867189d, 0xf8bb1b4f, 0xf9079062, 0xf94d70ca,
55+
0xf98d8c7d, 0xf9c8928a, 0xf9ff175b, 0xfa319996, 0xfa6085f8,
56+
0xfa8c3a62, 0xfab5084e, 0xfadb36c8, 0xfaff0410, 0xfb20a6ea,
57+
0xfb404fb4, 0xfb5e2951, 0xfb7a59e9, 0xfb95038c, 0xfbae44ba,
58+
0xfbc638d8, 0xfbdcf892, 0xfbf29a30, 0xfc0731df, 0xfc1ad1ed,
59+
0xfc2d8b02, 0xfc3f6c4d, 0xfc5083ac, 0xfc60ddd1, 0xfc708662,
60+
0xfc7f8810, 0xfc8decb4, 0xfc9bbd62, 0xfca9027c, 0xfcb5c3c3,
61+
0xfcc20864, 0xfccdd70a, 0xfcd935e3, 0xfce42ab0, 0xfceebace,
62+
0xfcf8eb3b, 0xfd02c0a0, 0xfd0c3f59, 0xfd156b7b, 0xfd1e48d6,
63+
0xfd26daff, 0xfd2f2552, 0xfd372af7, 0xfd3eeee5, 0xfd4673e7,
64+
0xfd4dbc9e, 0xfd54cb85, 0xfd5ba2f2, 0xfd62451b, 0xfd68b415,
65+
0xfd6ef1da, 0xfd750047, 0xfd7ae120, 0xfd809612, 0xfd8620b4,
66+
0xfd8b8285, 0xfd90bcf5, 0xfd95d15e, 0xfd9ac10b, 0xfd9f8d36,
67+
0xfda43708, 0xfda8bf9e, 0xfdad2806, 0xfdb17141, 0xfdb59c46,
68+
0xfdb9a9fd, 0xfdbd9b46, 0xfdc170f6, 0xfdc52bd8, 0xfdc8ccac,
69+
0xfdcc542d, 0xfdcfc30b, 0xfdd319ef, 0xfdd6597a, 0xfdd98245,
70+
0xfddc94e5, 0xfddf91e6, 0xfde279ce, 0xfde54d1f, 0xfde80c52,
71+
0xfdeab7de, 0xfded5034, 0xfdefd5be, 0xfdf248e3, 0xfdf4aa06,
72+
0xfdf6f984, 0xfdf937b6, 0xfdfb64f4, 0xfdfd818d, 0xfdff8dd0,
73+
0xfe018a08, 0xfe03767a, 0xfe05536c, 0xfe07211c, 0xfe08dfc9,
74+
0xfe0a8fab, 0xfe0c30fb, 0xfe0dc3ec, 0xfe0f48b1, 0xfe10bf76,
75+
0xfe122869, 0xfe1383b4, 0xfe14d17c, 0xfe1611e7, 0xfe174516,
76+
0xfe186b2a, 0xfe19843e, 0xfe1a9070, 0xfe1b8fd6, 0xfe1c8289,
77+
0xfe1d689b, 0xfe1e4220, 0xfe1f0f26, 0xfe1fcfbc, 0xfe2083ed,
78+
0xfe212bc3, 0xfe21c745, 0xfe225678, 0xfe22d95f, 0xfe234ffb,
79+
0xfe23ba4a, 0xfe241849, 0xfe2469f2, 0xfe24af3c, 0xfe24e81e,
80+
0xfe25148b, 0xfe253474, 0xfe2547c7, 0xfe254e70, 0xfe25485a,
81+
0xfe25356a, 0xfe251586, 0xfe24e88f, 0xfe24ae64, 0xfe2466e1,
82+
0xfe2411df, 0xfe23af34, 0xfe233eb4, 0xfe22c02c, 0xfe22336b,
83+
0xfe219838, 0xfe20ee58, 0xfe20358c, 0xfe1f6d92, 0xfe1e9621,
84+
0xfe1daef0, 0xfe1cb7ac, 0xfe1bb002, 0xfe1a9798, 0xfe196e0d,
85+
0xfe1832fd, 0xfe16e5fe, 0xfe15869d, 0xfe141464, 0xfe128ed3,
86+
0xfe10f565, 0xfe0f478c, 0xfe0d84b1, 0xfe0bac36, 0xfe09bd73,
87+
0xfe07b7b5, 0xfe059a40, 0xfe03644c, 0xfe011504, 0xfdfeab88,
88+
0xfdfc26e9, 0xfdf98629, 0xfdf6c83b, 0xfdf3ec01, 0xfdf0f04a,
89+
0xfdedd3d1, 0xfdea953d, 0xfde7331e, 0xfde3abe9, 0xfddffdfb,
90+
0xfddc2791, 0xfdd826cd, 0xfdd3f9a8, 0xfdcf9dfc, 0xfdcb1176,
91+
0xfdc65198, 0xfdc15bb3, 0xfdbc2ce2, 0xfdb6c206, 0xfdb117be,
92+
0xfdab2a63, 0xfda4f5fd, 0xfd9e7640, 0xfd97a67a, 0xfd908192,
93+
0xfd8901f2, 0xfd812182, 0xfd78d98e, 0xfd7022bb, 0xfd66f4ed,
94+
0xfd5d4732, 0xfd530f9c, 0xfd48432b, 0xfd3cd59a, 0xfd30b936,
95+
0xfd23dea4, 0xfd16349e, 0xfd07a7a3, 0xfcf8219b, 0xfce7895b,
96+
0xfcd5c220, 0xfcc2aadb, 0xfcae1d5e, 0xfc97ed4e, 0xfc7fe6d4,
97+
0xfc65ccf3, 0xfc495762, 0xfc2a2fc8, 0xfc07ee19, 0xfbe213c1,
98+
0xfbb8051a, 0xfb890078, 0xfb5411a5, 0xfb180005, 0xfad33482,
99+
0xfa839276, 0xfa263b32, 0xf9b72d1c, 0xf930a1a2, 0xf889f023,
100+
0xf7b577d2, 0xf69c650c, 0xf51530f0, 0xf2cb0e3c, 0xeeefb15d,
101+
0xe6da6ecf,
102+
}
103+
var we = [256]float32{
104+
2.0249555e-09, 1.486674e-11, 2.4409617e-11, 3.1968806e-11,
105+
3.844677e-11, 4.4228204e-11, 4.9516443e-11, 5.443359e-11,
106+
5.905944e-11, 6.344942e-11, 6.7643814e-11, 7.1672945e-11,
107+
7.556032e-11, 7.932458e-11, 8.298079e-11, 8.654132e-11,
108+
9.0016515e-11, 9.3415074e-11, 9.674443e-11, 1.0001099e-10,
109+
1.03220314e-10, 1.06377254e-10, 1.09486115e-10, 1.1255068e-10,
110+
1.1557435e-10, 1.1856015e-10, 1.2151083e-10, 1.2442886e-10,
111+
1.2731648e-10, 1.3017575e-10, 1.3300853e-10, 1.3581657e-10,
112+
1.3860142e-10, 1.4136457e-10, 1.4410738e-10, 1.4683108e-10,
113+
1.4953687e-10, 1.5222583e-10, 1.54899e-10, 1.5755733e-10,
114+
1.6020171e-10, 1.6283301e-10, 1.6545203e-10, 1.6805951e-10,
115+
1.7065617e-10, 1.732427e-10, 1.7581973e-10, 1.7838787e-10,
116+
1.8094774e-10, 1.8349985e-10, 1.8604476e-10, 1.8858298e-10,
117+
1.9111498e-10, 1.9364126e-10, 1.9616223e-10, 1.9867835e-10,
118+
2.0119004e-10, 2.0369768e-10, 2.0620168e-10, 2.087024e-10,
119+
2.1120022e-10, 2.136955e-10, 2.1618855e-10, 2.1867974e-10,
120+
2.2116936e-10, 2.2365775e-10, 2.261452e-10, 2.2863202e-10,
121+
2.311185e-10, 2.3360494e-10, 2.360916e-10, 2.3857874e-10,
122+
2.4106667e-10, 2.4355562e-10, 2.4604588e-10, 2.485377e-10,
123+
2.5103128e-10, 2.5352695e-10, 2.560249e-10, 2.585254e-10,
124+
2.6102867e-10, 2.6353494e-10, 2.6604446e-10, 2.6855745e-10,
125+
2.7107416e-10, 2.7359479e-10, 2.761196e-10, 2.7864877e-10,
126+
2.8118255e-10, 2.8372119e-10, 2.8626485e-10, 2.888138e-10,
127+
2.9136826e-10, 2.939284e-10, 2.9649452e-10, 2.9906677e-10,
128+
3.016454e-10, 3.0423064e-10, 3.0682268e-10, 3.0942177e-10,
129+
3.1202813e-10, 3.1464195e-10, 3.1726352e-10, 3.19893e-10,
130+
3.2253064e-10, 3.251767e-10, 3.2783135e-10, 3.3049485e-10,
131+
3.3316744e-10, 3.3584938e-10, 3.3854083e-10, 3.4124212e-10,
132+
3.4395342e-10, 3.46675e-10, 3.4940711e-10, 3.5215003e-10,
133+
3.5490397e-10, 3.5766917e-10, 3.6044595e-10, 3.6323455e-10,
134+
3.660352e-10, 3.6884823e-10, 3.7167386e-10, 3.745124e-10,
135+
3.773641e-10, 3.802293e-10, 3.8310827e-10, 3.860013e-10,
136+
3.8890866e-10, 3.918307e-10, 3.9476775e-10, 3.9772008e-10,
137+
4.0068804e-10, 4.0367196e-10, 4.0667217e-10, 4.09689e-10,
138+
4.1272286e-10, 4.1577405e-10, 4.1884296e-10, 4.2192994e-10,
139+
4.250354e-10, 4.281597e-10, 4.313033e-10, 4.3446652e-10,
140+
4.3764986e-10, 4.408537e-10, 4.4407847e-10, 4.4732465e-10,
141+
4.5059267e-10, 4.5388301e-10, 4.571962e-10, 4.6053267e-10,
142+
4.6389292e-10, 4.6727755e-10, 4.70687e-10, 4.741219e-10,
143+
4.7758275e-10, 4.810702e-10, 4.845848e-10, 4.8812715e-10,
144+
4.9169796e-10, 4.9529775e-10, 4.989273e-10, 5.0258725e-10,
145+
5.0627835e-10, 5.100013e-10, 5.1375687e-10, 5.1754584e-10,
146+
5.21369e-10, 5.2522725e-10, 5.2912136e-10, 5.330522e-10,
147+
5.370208e-10, 5.4102806e-10, 5.45075e-10, 5.491625e-10,
148+
5.532918e-10, 5.5746385e-10, 5.616799e-10, 5.6594107e-10,
149+
5.7024857e-10, 5.746037e-10, 5.7900773e-10, 5.834621e-10,
150+
5.8796823e-10, 5.925276e-10, 5.971417e-10, 6.018122e-10,
151+
6.065408e-10, 6.113292e-10, 6.1617933e-10, 6.2109295e-10,
152+
6.260722e-10, 6.3111916e-10, 6.3623595e-10, 6.4142497e-10,
153+
6.4668854e-10, 6.5202926e-10, 6.5744976e-10, 6.6295286e-10,
154+
6.6854156e-10, 6.742188e-10, 6.79988e-10, 6.858526e-10,
155+
6.9181616e-10, 6.978826e-10, 7.04056e-10, 7.103407e-10,
156+
7.167412e-10, 7.2326256e-10, 7.2990985e-10, 7.366886e-10,
157+
7.4360473e-10, 7.5066453e-10, 7.5787476e-10, 7.6524265e-10,
158+
7.7277595e-10, 7.80483e-10, 7.883728e-10, 7.9645507e-10,
159+
8.047402e-10, 8.1323964e-10, 8.219657e-10, 8.309319e-10,
160+
8.401528e-10, 8.496445e-10, 8.594247e-10, 8.6951274e-10,
161+
8.799301e-10, 8.9070046e-10, 9.018503e-10, 9.134092e-10,
162+
9.254101e-10, 9.378904e-10, 9.508923e-10, 9.644638e-10,
163+
9.786603e-10, 9.935448e-10, 1.0091913e-09, 1.025686e-09,
164+
1.0431306e-09, 1.0616465e-09, 1.08138e-09, 1.1025096e-09,
165+
1.1252564e-09, 1.1498986e-09, 1.1767932e-09, 1.206409e-09,
166+
1.2393786e-09, 1.276585e-09, 1.3193139e-09, 1.3695435e-09,
167+
1.4305498e-09, 1.508365e-09, 1.6160854e-09, 1.7921248e-09,
168+
}
169+
var fe = [256]float32{
170+
1, 0.9381437, 0.90046996, 0.87170434, 0.8477855, 0.8269933,
171+
0.8084217, 0.7915276, 0.77595687, 0.7614634, 0.7478686,
172+
0.7350381, 0.72286767, 0.71127474, 0.70019263, 0.6895665,
173+
0.67935055, 0.6695063, 0.66000086, 0.65080583, 0.6418967,
174+
0.63325197, 0.6248527, 0.6166822, 0.60872537, 0.60096896,
175+
0.5934009, 0.58601034, 0.5787874, 0.57172304, 0.5648092,
176+
0.5580383, 0.5514034, 0.5448982, 0.5385169, 0.53225386,
177+
0.5261042, 0.52006316, 0.5141264, 0.50828975, 0.5025495,
178+
0.496902, 0.49134386, 0.485872, 0.48048335, 0.4751752,
179+
0.46994483, 0.46478975, 0.45970762, 0.45469615, 0.44975325,
180+
0.44487688, 0.44006512, 0.43531612, 0.43062815, 0.42599955,
181+
0.42142874, 0.4169142, 0.41245446, 0.40804818, 0.403694,
182+
0.3993907, 0.39513698, 0.39093173, 0.38677382, 0.38266218,
183+
0.37859577, 0.37457356, 0.37059465, 0.3666581, 0.362763,
184+
0.35890847, 0.35509375, 0.351318, 0.3475805, 0.34388044,
185+
0.34021714, 0.3365899, 0.33299807, 0.32944095, 0.32591796,
186+
0.3224285, 0.3189719, 0.31554767, 0.31215525, 0.30879408,
187+
0.3054636, 0.3021634, 0.29889292, 0.2956517, 0.29243928,
188+
0.28925523, 0.28609908, 0.28297043, 0.27986884, 0.27679393,
189+
0.2737453, 0.2707226, 0.2677254, 0.26475343, 0.26180625,
190+
0.25888354, 0.25598502, 0.2531103, 0.25025907, 0.24743107,
191+
0.24462597, 0.24184346, 0.23908329, 0.23634516, 0.23362878,
192+
0.23093392, 0.2282603, 0.22560766, 0.22297576, 0.22036438,
193+
0.21777324, 0.21520215, 0.21265087, 0.21011916, 0.20760682,
194+
0.20511365, 0.20263945, 0.20018397, 0.19774707, 0.19532852,
195+
0.19292815, 0.19054577, 0.1881812, 0.18583426, 0.18350479,
196+
0.1811926, 0.17889754, 0.17661946, 0.17435817, 0.17211354,
197+
0.1698854, 0.16767362, 0.16547804, 0.16329853, 0.16113494,
198+
0.15898713, 0.15685499, 0.15473837, 0.15263714, 0.15055119,
199+
0.14848037, 0.14642459, 0.14438373, 0.14235765, 0.14034624,
200+
0.13834943, 0.13636707, 0.13439907, 0.13244532, 0.13050574,
201+
0.1285802, 0.12666863, 0.12477092, 0.12288698, 0.12101672,
202+
0.119160056, 0.1173169, 0.115487166, 0.11367077, 0.11186763,
203+
0.11007768, 0.10830083, 0.10653701, 0.10478614, 0.10304816,
204+
0.101323, 0.09961058, 0.09791085, 0.09622374, 0.09454919,
205+
0.09288713, 0.091237515, 0.08960028, 0.087975375, 0.08636274,
206+
0.08476233, 0.083174095, 0.081597984, 0.08003395, 0.07848195,
207+
0.076941945, 0.07541389, 0.07389775, 0.072393484, 0.07090106,
208+
0.069420435, 0.06795159, 0.066494495, 0.06504912, 0.063615434,
209+
0.062193416, 0.060783047, 0.059384305, 0.057997175,
210+
0.05662164, 0.05525769, 0.053905312, 0.052564494, 0.051235236,
211+
0.049917534, 0.048611384, 0.047316793, 0.046033762, 0.0447623,
212+
0.043502413, 0.042254124, 0.041017443, 0.039792392,
213+
0.038578995, 0.037377283, 0.036187284, 0.035009038,
214+
0.033842582, 0.032687962, 0.031545233, 0.030414443, 0.02929566,
215+
0.02818895, 0.027094385, 0.026012046, 0.024942026, 0.023884421,
216+
0.022839336, 0.021806888, 0.020787204, 0.019780423, 0.0187867,
217+
0.0178062, 0.016839107, 0.015885621, 0.014945968, 0.014020392,
218+
0.013109165, 0.012212592, 0.011331013, 0.01046481, 0.009614414,
219+
0.008780315, 0.007963077, 0.0071633533, 0.006381906,
220+
0.0056196423, 0.0048776558, 0.004157295, 0.0034602648,
221+
0.0027887989, 0.0021459677, 0.0015362998, 0.0009672693,
222+
0.00045413437,
223+
}

‎src/pkg/rand/normal.go

Lines changed: 158 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,158 @@
1+
// Copyright 2009 The Go Authors. All rights reserved.
2+
// Use of this source code is governed by a BSD-style
3+
// license that can be found in the LICENSE file.
4+
5+
package rand
6+
7+
import (
8+
"math";
9+
)
10+
11+
/*
12+
* Normal distribution
13+
*
14+
* See "The Ziggurat Method for Generating Random Variables"
15+
* (Marsaglia & Tsang, 2000)
16+
* http://www.jstatsoft.org/v05/i08/paper [pdf]
17+
*/
18+
19+
const (
20+
rn = 3.442619855899;
21+
)
22+
23+
func absInt32(i int32) uint32 {
24+
if i < 0 {
25+
return uint32(-i);
26+
}
27+
return uint32(i);
28+
}
29+
30+
// NormFloat64 returns a normally distributed float64 in the range
31+
// [-math.MaxFloat64, +math.MaxFloat64] with
32+
// standard normal distribution (mean = 0, stddev = 1).
33+
// To produce a different normal distribution, callers can
34+
// adjust the output using:
35+
//
36+
// sample = NormFloat64() * desiredStdDev + desiredMean
37+
//
38+
func (r *Rand) NormFloat64() float64 {
39+
for {
40+
j := int32(r.Uint32()); // Possibly negative
41+
i := j&0x7F;
42+
x := float64(j)*float64(wn[i]);
43+
if absInt32(j) < kn[i] {
44+
// This case should be hit better than 99% of the time.
45+
return x;
46+
}
47+
48+
if i == 0 {
49+
// This extra work is only required for the base strip.
50+
for {
51+
x = -math.Log(r.Float64()) * (1.0/rn);
52+
y := -math.Log(r.Float64());
53+
if y+y >= x*x {
54+
break;
55+
}
56+
}
57+
if j > 0 {
58+
return rn+x;
59+
}
60+
return -rn - x;
61+
}
62+
if fn[i] + float32(r.Float64())*(fn[i-1]-fn[i]) < float32(math.Exp(-.5 * x * x)) {
63+
return x;
64+
}
65+
}
66+
panic("unreachable");
67+
}
68+
69+
var kn = [128]uint32{
70+
0x76ad2212, 0x0, 0x600f1b53, 0x6ce447a6, 0x725b46a2,
71+
0x7560051d, 0x774921eb, 0x789a25bd, 0x799045c3, 0x7a4bce5d,
72+
0x7adf629f, 0x7b5682a6, 0x7bb8a8c6, 0x7c0ae722, 0x7c50cce7,
73+
0x7c8cec5b, 0x7cc12cd6, 0x7ceefed2, 0x7d177e0b, 0x7d3b8883,
74+
0x7d5bce6c, 0x7d78dd64, 0x7d932886, 0x7dab0e57, 0x7dc0dd30,
75+
0x7dd4d688, 0x7de73185, 0x7df81cea, 0x7e07c0a3, 0x7e163efa,
76+
0x7e23b587, 0x7e303dfd, 0x7e3beec2, 0x7e46db77, 0x7e51155d,
77+
0x7e5aabb3, 0x7e63abf7, 0x7e6c222c, 0x7e741906, 0x7e7b9a18,
78+
0x7e82adfa, 0x7e895c63, 0x7e8fac4b, 0x7e95a3fb, 0x7e9b4924,
79+
0x7ea0a0ef, 0x7ea5b00d, 0x7eaa7ac3, 0x7eaf04f3, 0x7eb3522a,
80+
0x7eb765a5, 0x7ebb4259, 0x7ebeeafd, 0x7ec2620a, 0x7ec5a9c4,
81+
0x7ec8c441, 0x7ecbb365, 0x7ece78ed, 0x7ed11671, 0x7ed38d62,
82+
0x7ed5df12, 0x7ed80cb4, 0x7eda175c, 0x7edc0005, 0x7eddc78e,
83+
0x7edf6ebf, 0x7ee0f647, 0x7ee25ebe, 0x7ee3a8a9, 0x7ee4d473,
84+
0x7ee5e276, 0x7ee6d2f5, 0x7ee7a620, 0x7ee85c10, 0x7ee8f4cd,
85+
0x7ee97047, 0x7ee9ce59, 0x7eea0eca, 0x7eea3147, 0x7eea3568,
86+
0x7eea1aab, 0x7ee9e071, 0x7ee98602, 0x7ee90a88, 0x7ee86d08,
87+
0x7ee7ac6a, 0x7ee6c769, 0x7ee5bc9c, 0x7ee48a67, 0x7ee32efc,
88+
0x7ee1a857, 0x7edff42f, 0x7ede0ffa, 0x7edbf8d9, 0x7ed9ab94,
89+
0x7ed7248d, 0x7ed45fae, 0x7ed1585c, 0x7ece095f, 0x7eca6ccb,
90+
0x7ec67be2, 0x7ec22eee, 0x7ebd7d1a, 0x7eb85c35, 0x7eb2c075,
91+
0x7eac9c20, 0x7ea5df27, 0x7e9e769f, 0x7e964c16, 0x7e8d44ba,
92+
0x7e834033, 0x7e781728, 0x7e6b9933, 0x7e5d8a1a, 0x7e4d9ded,
93+
0x7e3b737a, 0x7e268c2f, 0x7e0e3ff5, 0x7df1aa5d, 0x7dcf8c72,
94+
0x7da61a1e, 0x7d72a0fb, 0x7d30e097, 0x7cd9b4ab, 0x7c600f1a,
95+
0x7ba90bdc, 0x7a722176, 0x77d664e5,
96+
}
97+
var wn = [128]float32{
98+
1.7290405e-09, 1.2680929e-10, 1.6897518e-10, 1.9862688e-10,
99+
2.2232431e-10, 2.4244937e-10, 2.601613e-10, 2.7611988e-10,
100+
2.9073963e-10, 3.042997e-10, 3.1699796e-10, 3.289802e-10,
101+
3.4035738e-10, 3.5121603e-10, 3.616251e-10, 3.7164058e-10,
102+
3.8130857e-10, 3.9066758e-10, 3.9975012e-10, 4.08584e-10,
103+
4.1719309e-10, 4.2559822e-10, 4.338176e-10, 4.418672e-10,
104+
4.497613e-10, 4.5751258e-10, 4.651324e-10, 4.7263105e-10,
105+
4.8001775e-10, 4.87301e-10, 4.944885e-10, 5.015873e-10,
106+
5.0860405e-10, 5.155446e-10, 5.2241467e-10, 5.2921934e-10,
107+
5.359635e-10, 5.426517e-10, 5.4928817e-10, 5.5587696e-10,
108+
5.624219e-10, 5.6892646e-10, 5.753941e-10, 5.818282e-10,
109+
5.882317e-10, 5.946077e-10, 6.00959e-10, 6.072884e-10,
110+
6.135985e-10, 6.19892e-10, 6.2617134e-10, 6.3243905e-10,
111+
6.386974e-10, 6.449488e-10, 6.511956e-10, 6.5744005e-10,
112+
6.6368433e-10, 6.699307e-10, 6.7618144e-10, 6.824387e-10,
113+
6.8870465e-10, 6.949815e-10, 7.012715e-10, 7.075768e-10,
114+
7.1389966e-10, 7.202424e-10, 7.266073e-10, 7.329966e-10,
115+
7.394128e-10, 7.4585826e-10, 7.5233547e-10, 7.58847e-10,
116+
7.653954e-10, 7.719835e-10, 7.7861395e-10, 7.852897e-10,
117+
7.920138e-10, 7.987892e-10, 8.0561924e-10, 8.125073e-10,
118+
8.194569e-10, 8.2647167e-10, 8.3355556e-10, 8.407127e-10,
119+
8.479473e-10, 8.55264e-10, 8.6266755e-10, 8.7016316e-10,
120+
8.777562e-10, 8.8545243e-10, 8.932582e-10, 9.0117996e-10,
121+
9.09225e-10, 9.174008e-10, 9.2571584e-10, 9.341788e-10,
122+
9.427997e-10, 9.515889e-10, 9.605579e-10, 9.697193e-10,
123+
9.790869e-10, 9.88676e-10, 9.985036e-10, 1.0085882e-09,
124+
1.0189509e-09, 1.0296151e-09, 1.0406069e-09, 1.0519566e-09,
125+
1.063698e-09, 1.0758702e-09, 1.0885183e-09, 1.1016947e-09,
126+
1.1154611e-09, 1.1298902e-09, 1.1450696e-09, 1.1611052e-09,
127+
1.1781276e-09, 1.1962995e-09, 1.2158287e-09, 1.2369856e-09,
128+
1.2601323e-09, 1.2857697e-09, 1.3146202e-09, 1.347784e-09,
129+
1.3870636e-09, 1.4357403e-09, 1.5008659e-09, 1.6030948e-09,
130+
}
131+
var fn = [128]float32{
132+
1, 0.9635997, 0.9362827, 0.9130436, 0.89228165, 0.87324303,
133+
0.8555006, 0.8387836, 0.8229072, 0.8077383, 0.793177,
134+
0.7791461, 0.7655842, 0.7524416, 0.73967725, 0.7272569,
135+
0.7151515, 0.7033361, 0.69178915, 0.68049186, 0.6694277,
136+
0.658582, 0.6479418, 0.63749546, 0.6272325, 0.6171434,
137+
0.6072195, 0.5974532, 0.58783704, 0.5783647, 0.56903,
138+
0.5598274, 0.5507518, 0.54179835, 0.5329627, 0.52424055,
139+
0.5156282, 0.50712204, 0.49871865, 0.49041483, 0.48220766,
140+
0.4740943, 0.46607214, 0.4581387, 0.45029163, 0.44252872,
141+
0.43484783, 0.427247, 0.41972435, 0.41227803, 0.40490642,
142+
0.39760786, 0.3903808, 0.3832238, 0.37613547, 0.36911446,
143+
0.3621595, 0.35526937, 0.34844297, 0.34167916, 0.33497685,
144+
0.3283351, 0.3217529, 0.3152294, 0.30876362, 0.30235484,
145+
0.29600215, 0.28970486, 0.2834622, 0.2772735, 0.27113807,
146+
0.2650553, 0.25902456, 0.2530453, 0.24711695, 0.241239,
147+
0.23541094, 0.22963232, 0.2239027, 0.21822165, 0.21258877,
148+
0.20700371, 0.20146611, 0.19597565, 0.19053204, 0.18513499,
149+
0.17978427, 0.17447963, 0.1692209, 0.16400786, 0.15884037,
150+
0.15371831, 0.14864157, 0.14361008, 0.13862377, 0.13368265,
151+
0.12878671, 0.12393598, 0.119130544, 0.11437051, 0.10965602,
152+
0.104987256, 0.10036444, 0.095787846, 0.0912578, 0.08677467,
153+
0.0823389, 0.077950984, 0.073611505, 0.06932112, 0.06508058,
154+
0.06089077, 0.056752663, 0.0526674, 0.048636295, 0.044660863,
155+
0.040742867, 0.03688439, 0.033087887, 0.029356318,
156+
0.025693292, 0.022103304, 0.018592102, 0.015167298,
157+
0.011839478, 0.008624485, 0.005548995, 0.0026696292,
158+
}

0 commit comments

Comments
 (0)