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Ky thu .t nh,

o trong LATEXChuy

,

n d,

i sang s la ma

Nguyn Hu,

u i,

n

Khoa Toan - Co,

- Tin h .oc

HKHTN Ha N .i, HQGHN

M .uc l .uc

1 Gio,

i thi .u 1

2 Nhu,

ng l .nh lam du chm 1

1 Gio,

i thi .u

,

ch,

nh van b,

an trong LATEX cho d .ep co rt nhiu ky thu .t vvi .c nay, v d .u dung phng,

dung cac l .nh co san ho .ac xy d .u

,

ng l .nh d,

lam vi .c do cho thch h .o,

p. Lo .at bai noi v

ky thu .t trong LATEX ti tm toi va trnh by nhu

,

ng vn d nu bit th qua d khi lam cho

van b,

an d .ep. Ky thu .t qua do,

n gi,

an nhiu khi ngu,

o,

i dung khng d,

y va ap d .ung no.

2 Nhu,

ng l .nh lam du chm

1. Chuy

,

n s dm

\newcounter{roman}

\makeatletter

\def\xroman#1{\expandafter\@xroman\csname c@#1\endcsname}

\def\@xroman#1{\expandafter\@xromana\the#1!4!!\relax#1}

\def\@xromana#14!#2#3\relax#4{%

\ifx#2!%

\romannumeral#4%

\else

\romannumeral0#10iiii%

\fi}

1

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hp://nhdien.wordpress.com -Nguy n H u,

u i,

n 2

\makeatother

\setcounter{roman}{4}\roman{roman}\setcounter{roman}{14}\roman{roman}

\setcounter{roman}{9}\roman{roman}

\setcounter{roman}{19}\roman{roman}

\setcounter{roman}{4}\xroman{roman}

\setcounter{roman}{14}\xroman{roman}

\setcounter{roman}{9}\xroman{roman}

\setcounter{roman}{19}\xroman{roman}

iv xiv ix xix

iiii xiiii ix xix

2. Chuy,

n d,

i tu,

chu,

sth .p phn sang chu,

s la ma, dung l .nh\romannumeral

\def\rnum#1{\expandafter{\romannumeral #1}}

\def\Rnum#1{\uppercase\expandafter{\romannumeral #1}}

\begin{tabular}{|c|c|c|}

\hline

1& \rnum{1}& \Rnum{1}\\

2& \rnum{2}& \Rnum{2}\\

3& \rnum{3}& \Rnum{3}\\

4& \rnum{4}& \Rnum{4}\\

5& \rnum{5}& \Rnum{5}\\

6& \rnum{6}& \Rnum{6}\\

7& \rnum{7}& \Rnum{7}\\

8& \rnum{8}& \Rnum{8}\\

9& \rnum{9}& \Rnum{9}\\

10& \rnum{10}& \Rnum{10}\\

20& \rnum{20}& \Rnum{20}\\

30& \rnum{30}& \Rnum{30}\\

40& \rnum{40}& \Rnum{40}\\

50& \rnum{50}& \Rnum{50}\\

60& \rnum{60}& \Rnum{60}\\70& \rnum{70}& \Rnum{70}\\

80& \rnum{80}& \Rnum{80}\\

90& \rnum{90}& \Rnum{90}\\

100 & \rnum{100} & \Rnum{100}\\

500 & \rnum{500} & \Rnum{500}\\

1000& \rnum{1000}& \Rnum{1000}\\

2000& \rnum{2000}& \Rnum{2000}\\

\hline

\end{tabular}

1 i I

2 ii II

3 iii III

4 iv IV

5 v V

6 vi VI7 vii VII

8 viii VIII

9 ix IX

10 x X

20 xx XX

30 xxx XXX

40 xl XL

50 l L

60 lx LX

70 lxx LXX

80 lxxx LXXX90 xc XC

100 c C

500 d D

1000 m M

2000 mm MM