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Copyright 2012-2015 Manabu Kano. All rights reserved. 1
F2
Human Systems Lab., Dept. of Systems Science Graduate School of Informatics, Kyoto University
#4
2
2 f(x)
Leonhard Euler 1707-1783
Copyright 2012-2015 Manabu Kano. All rights reserved. 2
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3
cn n |cn|
4
x
f (x)
2TT0-T
a
-10 -8 -6 -4 -2 0 2 4 6 8 10
-10 -8 -6 -4 -2 0 2 4 6 8 10
x0
-
1
-1
Copyright 2012-2015 Manabu Kano. All rights reserved. 3
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5
cn c0 cn
in in
Outline 6
l l l l l l
Copyright 2012-2015 Manabu Kano. All rights reserved. 4
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bn an n -n
8
Copyright 2012-2015 Manabu Kano. All rights reserved. 5
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x2
--20
f (x)
x = 0
10
x M
Copyright 2012-2015 Manabu Kano. All rights reserved. 6
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11
x 1 M x M
12
Copyright 2012-2015 Manabu Kano. All rights reserved. 7
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N > M
Z b
a
NX
n=1
gn(x)dxZ b
ag(x)dx
=
Z b
a
NX
n=1
gn(x) g(x)!dx
Z b
a
NX
n=1
gn(x) g(x)
dx Z b
adx = (b a)
14
Copyright 2012-2015 Manabu Kano. All rights reserved. 8
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15
Outline 16
l l l l l l
Copyright 2012-2015 Manabu Kano. All rights reserved. 9
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n -n
18
bn an
n -n
Copyright 2012-2015 Manabu Kano. All rights reserved. 10
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bn an
19
n -n
a0/2
20
bn an
bn ana0/2
n, -n
n, -n
Copyright 2012-2015 Manabu Kano. All rights reserved. 11
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Outline 21
l l l l l l
22
f (x) x f (x)
Dirichlet 1805-1859
f (x) f (x)
Copyright 2012-2015 Manabu Kano. All rights reserved. 12
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23
l f (x)
l f (x) f(x) xz0
f (x) lim!0 f(z )
lim!0
f(z + )
Outline 24
l l l l l l
Copyright 2012-2015 Manabu Kano. All rights reserved. 13
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25
Gibbs 1839-1903
-2
-1
0
1
2
26
l n n f (x) n
Sn(x) n f*(x)
n Sn(x) f (x)
-2
-1
0
1
2
Copyright 2012-2015 Manabu Kano. All rights reserved. 14
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-2
-1
0
1
2
n
27
x0
f (x)
1
Outline 28
l l l l l l
Copyright 2012-2015 Manabu Kano. All rights reserved. 15
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29
2 f (x) TN(x)
E cn, dn
(1) 30
Copyright 2012-2015 Manabu Kano. All rights reserved. 16
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(2) 31
cn, dn
32
cn, dn f (x)
N N f (x)
Copyright 2012-2015 Manabu Kano. All rights reserved. 17
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33
Bessel 1784-1846
= 0
34
f (x) N
Copyright 2012-2015 Manabu Kano. All rights reserved. 18
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35
36
f (x) 2 f (x)
Copyright 2012-2015 Manabu Kano. All rights reserved. 19
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38
2 f (x) f (x) E N 0 f (x)
limit in the mean
Copyright 2012-2015 Manabu Kano. All rights reserved. 20
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Outline 39
l l l l l l
40