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Kittipong Maneewong
numer-60-2
Commits
87b4af92
Commit
87b4af92
authored
Feb 22, 2018
by
Kittipong Maneewong
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ส่งงาน week05
parent
70ab891f
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ge.py
week05/ge.py
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week05/ge.py
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87b4af92
# 59110440039
# 59110440039
# นายกิตติพงษ์ มณีวงษ์
# นายกิตติพงษ์ มณีวงษ์
def
ge
(
A
,
b
):
iimport
numpy
as
np
pass
def
ge
(
A
,
b
)
:
n
=
len
(
b
)
for
k
in
range
(
0
,
n
-
1
):
for
i
in
range
(
k
+
1
,
n
):
if
A
[
i
,
k
]
!=
0.0
:
lam
=
A
[
i
,
k
]
/
A
[
k
,
k
]
A
[
i
,
k
]
=
0
A
[
i
,
k
+
1
:
n
]
-=
lam
*
A
[
k
,
k
+
1
:
n
]
b
[
i
]
-=
lam
*
b
[
k
]
x
=
b
.
copy
()
for
k
in
range
(
n
-
1
,
-
1
,
-
1
):
x
[
k
]
=
(
b
[
k
]
-
np
.
dot
(
A
[
k
,
k
+
1
:
n
],
x
[
k
+
1
:
n
]))
/
A
[
k
,
k
]
return
(
x
)
A
=
np
.
array
([
[
4
,
-
2
,
1
],
[
-
2
,
4
,
-
2
],
[
1
,
-
2
,
4
]
],
float
)
b
=
np
.
array
([
11
,
-
16
,
17
],
float
)
print
(
ge
(
A
,
b
))
def
solve
(
A
,
b
):
def
solve
(
A
,
b
):
import
numpy.linalg
import
numpy.linalg
...
...
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