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>> A=rand(3,4)
7 _" f7 ]8 E/ `
* q& C1 R$ C1 f: c2 ~, y+ j' kA =
& U, @: v, B2 m5 ?8 q6 y( V1 E4 t, x
0 U" D4 A4 n' J' |8 D( T 0.1818 0.1361 0.5499 0.6221# L h7 C2 y4 B+ ~; k' l
0.2638 0.8693 0.1450 0.3510
8 ^+ D1 F$ y9 `- w0 z 0.1455 0.5797 0.8530 0.5132
" B( b0 B" d- y& s5 g4 J, u- [6 [" y! Q) G4 u+ u
>> A(2,: )=[] %删除第2行
/ {3 M* i9 N6 C5 S* @ ~8 M5 i9 B) l+ [/ |( T) h! U% Y
A =
3 |& }& Z' g5 d( k$ }$ I& |3 O- x$ s9 o$ ~+ R/ H
0.1818 0.1361 0.5499 0.62211 w* }' h. G1 j, ~' F
0.1455 0.5797 0.8530 0.5132 |
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