3. http://nhdien.wordpress.com - Nguyễn Hữu Điển 3
A =
a11
...
0a1n
, B =
0 · · · 0 1 0 · · · 0
0
0
...
00
$$
boldsymbol{C}=
left( hspace{-arraycolsep}
begin{array}{cccc}
a&b & &
c&d &multicolumn{2}{c}{raisebox{1.5ex}[0pt]{BigZero}}
& &e&f
multicolumn{2}{c}{raisebox{1.5ex}[0pt]{BigZero}} & g &h
end{array}
right)
$$
C =
a b
c d 0
e f
0 g h
2 Ma trận khối
$$
W = left(
begin{array}{c:c}
begin{matrix}
S_n & U_n
V_n & S_n^mathrm{,t}
end{matrix} & text{Large{:0}}
hdashline %
text{rule{0pt}{17pt}Large{0}} & textit{Large{I}}
end{array}
right)
$$
W =
Sn Un
Vn S t
n
0
0 I
4. http://nhdien.wordpress.com - Nguyễn Hữu Điển 4
$$
left(
begin{array}{ccc:c}
&&&b
&mbox{smash{hugetextit{A}}}&&c
&&&d hdashline
e&f&g&h
end{array}
right)
$$
b
A c
d
e f g h
$$
left(
begin{array}{cccc|c}
&&&&b
&&&&c
&mbox{smash{Huge $A$}}&&&d
&&&&e hline
f&g&h&i&j
end{array}
right)
$$
b
c
A d
e
f g h i j
$$
arraycolsep5pt
left(
begin{array}{@{,}c|cccc@{,}}
a_{11}&a_{12}&a_{13}&a_{14}&a_{15}
hline
a_{21}&&&&
a_{31}&multicolumn{4}{c}{raisebox{-10pt}[0pt][0pt]{Huge $A$}}
a_{41}&&&&
a_{51}&&&&
end{array}
16. http://nhdien.wordpress.com - Nguyễn Hữu Điển 16
begin{blockarray}{*{4}{c}}
begin{block}{[ccc]c}
bigstrutht 1-lambda x & 0 & 0 & ell_1
0 & 1-lambda x & 0 & ell_2
bigstrutdp 0 & 0 & 1-lambda x & ell_3
end{block}
c_1 & c_2 & c_3
end{blockarray}
$$
1 − λx 0 0 1
0 1 − λx 0 2
0 0 1 − λx 3
c1 c2 c3
2. Kẻ trong và cột ngoài
$$
begin{array}{crcc|cl}
& &e &multicolumn{1}{c}{f}&g &
a&ldelim[{4}{5pt}[]&x &x &x &rdelim]{4}{5pt}[]
b& &x &x &x &
& &cdots&cdots &cdots&
c& &x &x &x &
end{array}
$$
e f g
a
x x x
b x x x
· · · · · · · · ·
c x x x
$$
begin{blockarray}{ccccc}
& e & f & &g
begin{block}{c[cccc]}
a & x & x & vert & x
b & x & x & vert & x
& cdots & cdots & cdots & cdots
c & x & x & vert & x
end{block}
end{blockarray}
$$
17. http://nhdien.wordpress.com - Nguyễn Hữu Điển 17
e f g
a x x | x
b x x | x
· · · · · · · · · · · ·
c x x | x
$$
bordermatrix{
&e&f&&gcr
a&x&x&vert&xcr
b&x&x&vert&xcr
&cdots&cdots&cdots&cdotscr
c&x&x&vert&xcr
}
$$
e f g
a x x | x
b x x | x
· · · · · · · · · · · ·
c x x | x
$$
begin{array}{c@{}cc}
& begin{array}{ccc}e & f & gend{array}
begin{array}{c}abcend{array} &
left[begin{array}{cc|c}
x & x & x
x & x & x
hdotsfor{3}
x & x & x
end{array}right]
end{array}
$$
e f g
a
b
c
x x x
x x x
. . . . . . . .
x x x
3. Dùng bigdelim.sty
18. http://nhdien.wordpress.com - Nguyễn Hữu Điển 18
$$
begin{array}{rrcccll}
& &1&2&3& &
1&ldelim({3}{3mm}[] &a&b&c& rdelim){3}{3mm}[]&1
2& &d&e&f& &2
3& &g&h&i& &3
& &1&2&3& &
end{array}
$$
1 2 3
1
a b c
1
2 d e f 2
3 g h i 3
1 2 3
$$
begin{array}{rrcccll}
& &1&2&3& &
1&ldelim[{3}{3mm}[] &a&b&c& rdelim]{3}{3mm}[]&1
2& &d&e&f& &2
3& &g&h&i& &3
& &1&2&3& &
end{array}
$$
1 2 3
1
a b c
1
2 d e f 2
3 g h i 3
1 2 3
$$
begin{array}{rrcccll}
& &1&2&3& &
1&ldelim{{3}{3mm}[] &a&b&c& rdelim}{3}{3mm}[]&1
2& &d&e&f& &2
3& &g&h&i& &3
& &1&2&3& &
end{array}
$$
19. http://nhdien.wordpress.com - Nguyễn Hữu Điển 19
1 2 3
1
a b c
1
2 d e f 2
3 g h i 3
1 2 3
4. Ma trận và gói lệnh graphicx.sty
defrb#1{rotatebox{90}{$xleftarrow{#1}$}}
begin{tabular}{c}
$begin{matrix}
rb{text1}&rb{text1}&rb{text1}&rb{text1}
end{matrix}$
$begin{bmatrix}
X_x & Y_x & Z_x & T_x
X_y & Y_y & Z_y & T_y
X_z & Y_z & Z_z & T_z
0 & 0 & 0 & 1
end{bmatrix}$
end{tabular}
text1
←−−−
text1
←−−−
text1
←−−−
text1
←−−−
Xx Yx Zx Tx
Xy Yy Zy Ty
Xz Yz Zz Tz
0 0 0 1
5. Một phần tử là khối
$$
begin{pmatrix}
x & x & x & x
x & x & x & x
x & x & x & x
begin{matrix}x + y + {}[-2pt] z + a end{matrix}
& x & x & x
end{pmatrix}
$$
x x x x
x x x x
x x x x
x + y +
z + a x x x
20. http://nhdien.wordpress.com - Nguyễn Hữu Điển 20
$$
begin{pmatrix}
x & x & x & x
x & x & x & x
x & x & x & x
begin{matrix}x + y + z + a end{matrix}
& x & x & x
end{pmatrix}
$$
x x x x
x x x x
x x x x
x + y+
z + a
x x x
7 Định nghĩa Matrix mới
$
bordermatrix{
& a & a & a cr
a & a & b & c cr
a & x & y & z
}
$
hfill
$
bordermatrix[{[]}]{
& 1 & 2 & 3 cr
1 & a & b & c cr
2 & x & y & z
}
$
hfill
$
bordermatrix[{}]{
& 1 & 2 & 3 cr
1 & a & b & c cr
2 & x & y & z
}
$
a a a
a a b c
a x y z
1 2 3
1 a b c
2 x y z
1 2 3
1 a b c
2 x y z
21. http://nhdien.wordpress.com - Nguyễn Hữu Điển 21
$
bordermatrix*{
a & b & c & 1cr
x & y & z & 2cr
1 & 2 & 3 &
}
$
hfill
$
bordermatrix*[{[]}]{
a & b & c & 1cr
x & y & z & 2cr
1 & 2 & 3 &
}
$
hfill
$
bordermatrix*[{}]{
a & b & c & 1cr
x & y & z & 2cr
1 & 2 & 3 &
}
$
a b c 1
x y z 2
1 2 3
a b c 1
x y z 2
1 2 3
a b c 1
x y z 2
1 2 3
8 Hệ phương trình
$$
bordermatrix{ & A_1 & A_2 & cdots & A_n cr
C_1 & w_1 & w_2 & ldots & w_1 cr
C_2 & w_2 & w_2 & ldots & w_2 cr
vdots & vdots & vdots & ddots & vdots cr
C_n & w_n & w_n & ldots & w_n cr
}
bordermatrix{ & cr
&w_1 cr
&w_2 cr
&vdots cr
&w_n cr
}
=n
bordermatrix{ & cr