_
覓
|
覦覈襦
|
豕蠏手
|
殊螳
|
譯殊碁
螻
FrontPage
› 螻
Data Analysis(R)
Data Analysis(Python)
Statistics
Data Warehouse
Database System
SQL Server
Trino
Hive
Hadoop
Regular Expressions
Tools
Money
Working Smart
Blog
Booklog
Philosophy
Link
Miscellaneous
__
edit
Contents
1
蟯螻
2
, 襴蠍
[
edit
]
1
蟯螻
#
企 蟆 '覃'企朱 螳 り 螳.
k x m m x n 螻 螻燕覃 k x n る, 蠏碁 n覯 覯″郁咳り 螳覃 .
A, B襯 螻燕 A = k x m, B = m x n 螳 m 螳 .
B 2 讌磯 3 x 2 螻 1 x 2 螻燕蟆 . A 覿覈 螳 朱, B り . れ 襷讌 .
[
edit
]
2
, 襴蠍
#
A
3 4 2 5
B
0 -1 1 0
C
2 0 0 1
A B,C襯 螻燕 覩(B, C襯 覲企 螳 0企)
A*B :
A*C : 襴蠍
鏤
蠍 蠍郁鍵..
企: :
襦螻豺
EditText
:
Print
:
Mobile
:
FindPage
:
DeletePage
:
LikePages
:
Powered by MoniWiki
: Last modified 2018-04-13 23:12:53
蠏碁所 ロ 讌 襷 碁襯 襴糾 襷 . (れ梗)