The bigints package

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The bigints package

Merciadri Luca

February 26, 2010

1 Introduction

2

2 Use

2

2.1 Loading the Package

. . . .

2

2.2 Available Options

. . . .

2

3 Examples

3

3.1 Possible Calls

. . . .

3

3.2 Practical Examples

. . . .

4

3.2.1 Matrices With Five Rows

. . . .

4

3.2.2 Matrices With Four Rows

. . . .

4

3.2.3 Matrices With Three Rows

. . . .

4

3.2.4 Matrices With Two Rows

. . . .

5

3.2.5 Matrices With One Row

. . . .

5

4 Implementation

6

5 Limitations

7

6 Remarks

7

7 Bugs

7

8 Version History

7

9 Contact

7 10 Credits

7

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1 Introduction

This package (v1.1) helps you to write big integrals when needed. For example,

you may want to write standard integrals before a matrix, but if you find them

too small, you can use bigger integrals thanks to this package.

2 Use

2.1 Loading the Package

To load the package, please use

\usepackage{bigints}

Please note that this package loads the package ‘amsmath.’ Consequently, you

do not need to load amsmath after having called bigints.

2.2 Available Options

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3 Examples

3.1 Possible Calls

Possible function calls are listed at Table

1 .

Integral’s command

Standard command

Integral’s command’s output

\bigint

Z

\bigints

Z

\bigintss

Z

\bigintsss

Z

\bigintssss

Z

\bigoint

I

\bigoints

I

\bigointss

I

\bigointsss

I

\bigointssss

I

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3.2 Practical Examples

3.2.1 Matrices With Five Rows

Compare

Z

t

f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n

m

− n







dt

to

Z

t

_f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n

m

− n







dt.

To achieve

Z

t

_f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n

m

− n







dt

you simply need to use \bigint at the place of \int before the matrix.

3.2.2 Matrices With Four Rows

Compare

Z

t

f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n







dt

to

Z

t

_f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n







dt.

To achieve

Z

t

_f

t

_i







a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

−i + jk + l

−m + n







dt

you simply need to use \bigints at the place of \int before the matrix.

3.2.3 Matrices With Three Rows

Compare

Z

t

f





a

_{(1−b)−cd−e}

dWs dt

k

f

− gh





dt

to

Z

t

_f

_



a

_{(1−b)−cd−e}

dWs dt

k

f

− gh





dt.

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3.2.4 Matrices With Two Rows

Compare

Z

t

f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

!

dt

to

Z

t

_f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

!

dt.

To achieve

Z

t

_f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

f

− gh

!

dt

you simply need to use \bigintsss at the place of \int before the matrix.

3.2.5 Matrices With One Row

Compare

Z

t

f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

dt

to

Z

t

_f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

dt.

To achieve

Z

t

_f

t

_i

a

_{(1−b)−cd−e}

dWs dt

k

dt

you simply need to use \bigintssss at the place of \int before the matrix.

This is here a matter of taste, as both symbols are typographically acceptable.

The same concept can be used for integrals on closed contours, such as the

standard \oint. You simply need to use \bigoint, \bigoints, \bigointss,

\bigointsss

and \bigointssss.

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4 Implementation

Here is the code of bigints.sty:

1 %% T h i s i s f i l e ‘ b i g i n t s . s t y ’ v 1 . 1 b y M e r c i a d r i L u c a . 3 \ NeedsTeXFormat{LaTeX 2 e } \ P r o v i d e s P a c k a g e { b i g i n t s } [ 2 0 1 0 / 0 2 / 2 5 W r i t i n g b i g i n t e g r a l s ] 5 \ P a c k a g e I n f o { b i g i n t s }{ T h i s i s B i g i n t s by M e r c i a d r i Luca . } 7 \ R e q u i r e P a c k a g e {amsmath } [ 2 0 0 0 / 0 7 / 1 8 ] 9 \ m a k e a t l e t t e r 11 \newcommand{\ b i g i n t }{\ @ i f n e x t c h a r \ @ b i g i n t s u b \ @ b i g i n t n o s u b} \ d e f \ @ b i g i n t s u b #1{\ d e f \ @ i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g i n t s u b s u p \ @ b i g i n t s u b n o s u p} 13 \ d e f \ @ b i g i n t s u b s u p ˆ#1{\mathop{\ t e x t {\Huge $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 35em%

\ @ i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 15 \ d e f \ @ b i g i n t s u b n o s u p{\mathop{\ t e x t {\Huge $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } \ d e f \ @ b i g i n t n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g i n t n o s u b s u p\ @ b i g i n t n o s u b n o s u p } 17 \ d e f \ @ b i g i n t n o s u b s u pˆ#1{\mathop{\ t e x t {\Huge $\ i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g i n t n o s u b n o s u p {\mathop{\ t e x t {\Huge $\ i n t $}}\ n o l i m i t s } 19 \newcommand{\ b i g i n t s }{\ @ i f n e x t c h a r \ @ b i g i n t s s u b \ @ b i g i n t s n o s u b } \ d e f \ @ b i g i n t s s u b #1{\ d e f \ @ i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s u b s u p \ @ b i g i n t s s u b n o s u p } 21 \ d e f \ @ b i g i n t s s u b s u p ˆ#1{\mathop{\ t e x t {\ huge $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 35em%

\ @ i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 23 \ d e f \ @ b i g i n t s s u b n o s u p {\mathop{\ t e x t {\ huge $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } \ d e f \ @ b i g i n t s n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g i n t s n o s u b s u p \ @ b i g i n t s n o s u b n o s u p} 25 \ d e f \ @ b i g i n t s n o s u b s u p ˆ#1{\mathop{\ t e x t {\ huge $\ i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g i n t s n o s u b n o s u p {\mathop{\ t e x t {\ huge $\ i n t $}}\ n o l i m i t s } 27 \newcommand{\ b i g i n t s s }{\ @ i f n e x t c h a r \ @ b i g i n t s s s u b \ @ b i g i n t s s n o s u b } \ d e f \ @ b i g i n t s s s u b #1{\ d e f \ @ i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s s u b s u p \ @ b i g i n t s s s u b n o s u p } 29 \ d e f \ @ b i g i n t s s s u b s u p ˆ#1{\mathop{\ t e x t {\LARGE$\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 25em%

\ @ i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 31 \ d e f \ @ b i g i n t s s s u b n o s u p {\mathop{\ t e x t {\LARGE$\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } \ d e f \ @ b i g i n t s s n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s n o s u b s u p \ @ b i g i n t s s n o s u b n o s u p } 33 \ d e f \ @ b i g i n t s s n o s u b s u p ˆ#1{\mathop{\ t e x t {\LARGE$\ i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g i n t s s n o s u b n o s u p {\mathop{\ t e x t {\LARGE$\ i n t $}}\ n o l i m i t s } 35 \newcommand{\ b i g i n t s s s }{\ @ i f n e x t c h a r \ @ b i g i n t s s s s u b \ @ b i g i n t s s s n o s u b} \ d e f \ @ b i g i n t s s s s u b #1{\ d e f \ @ i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s s s u b s u p\ @ b i g i n t s s s s u b n o s u p } 37 \ d e f \ @ b i g i n t s s s s u b s u pˆ#1{\mathop{\ t e x t {\ L a r g e $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 20em%

\ @ i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 39 \ d e f \ @ b i g i n t s s s s u b n o s u p {\mathop{\ t e x t {\ L a r g e $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } \ d e f \ @ b i g i n t s s s n o s u b{\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s s n o s u b s u p \ @ b i g i n t s s s n o s u b n o s u p } 41 \ d e f \ @ b i g i n t s s s n o s u b s u p ˆ#1{\mathop{\ t e x t {\ L a r g e $\ i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g i n t s s s n o s u b n o s u p {\mathop{\ t e x t {\ L a r g e $\ i n t $}}\ n o l i m i t s } 43 \newcommand{\ b i g i n t s s s s }{\ @ i f n e x t c h a r \ @ b i g i n t s s s s s u b \ @ b i g i n t s s s s n o s u b } \ d e f \ @ b i g i n t s s s s s u b #1{\ d e f \ @ i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s s s s u b s u p \ @ b i g i n t s s s s s u b n o s u p} 45 \ d e f \ @ b i g i n t s s s s s u b s u p ˆ#1{\mathop{\ t e x t {\ l a r g e $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 15em%

\ @ i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 47 \ d e f \ @ b i g i n t s s s s s u b n o s u p{\mathop{\ t e x t {\ l a r g e $\ i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } \ d e f \ @ b i g i n t s s s s n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g i n t s s s s n o s u b s u p\ @ b i g i n t s s s s n o s u b n o s u p } 49 \ d e f \ @ b i g i n t s s s s n o s u b s u pˆ#1{\mathop{\ t e x t {\ l a r g e $\ i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g i n t s s s s n o s u b n o s u p {\mathop{\ t e x t {\ l a r g e $\ i n t $}}\ n o l i m i t s } 51 \newcommand{\ b i g o i n t }{\ @ i f n e x t c h a r \ @ b i g o i n t s u b \ @ b i g o i n t n o s u b} 53 \ d e f \ @ b i g o i n t s u b #1{\ d e f \ @ o i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s u b s u p \ @ b i g o i n t s u b n o s u p} \ d e f \ @ b i g o i n t s u b s u p ˆ#1{\mathop{\ t e x t {\Huge $\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 35em% 55 \ @ o i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g o i n t s u b n o s u p{\mathop{\ t e x t {\Huge $\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ o i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } 57 \ d e f \ @ b i g o i n t n o s u b{\ @ i f n e x t c h a r ˆ\ @ b i g o i n t n o s u b s u p\ @ b i g o i n t n o s u b n o s u p } \ d e f \ @ b i g o i n t n o s u b s u pˆ#1{\mathop{\ t e x t {\ Huge $\ o i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 59 \ d e f \ @ b i g o i n t n o s u b n o s u p {\mathop{\ t e x t {\Huge $\ o i n t $}}\ n o l i m i t s } \newcommand{\ b i g o i n t s }{\ @ i f n e x t c h a r \ @ b i g o i n t s s u b \ @ b i g o i n t s n o s u b } 61 \ d e f \ @ b i g o i n t s s u b #1{\ d e f \ @ o i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s s u b s u p \ @ b i g o i n t s s u b n o s u p } \ d e f \ @ b i g o i n t s s u b s u p ˆ#1{\mathop{\ t e x t {\ huge $\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 35em% 63 \ @ o i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g o i n t s s u b n o s u p {\mathop{\ t e x t {\ huge $\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ o i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } 65 \ d e f \ @ b i g o i n t s n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s n o s u b s u p \ @ b i g o i n t s n o s u b n o s u p} \ d e f \ @ b i g o i n t s n o s u b s u p ˆ#1{\mathop{\ t e x t {\ huge $\ o i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 67 \ d e f \ @ b i g o i n t s n o s u b n o s u p {\mathop{\ t e x t {\ huge $\ o i n t $}}\ n o l i m i t s } \newcommand{\ b i g o i n t s s }{\ @ i f n e x t c h a r \ @ b i g o i n t s s s u b\ @ b i g o i n t s s n o s u b } 69 \ d e f \ @ b i g o i n t s s s u b #1{\ d e f \ @ o i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s s s u b s u p \ @ b i g o i n t s s s u b n o s u p } \ d e f \ @ b i g o i n t s s s u b s u p ˆ#1{\mathop{\ t e x t {\LARGE$\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \kern −0. 25em% 71 \ @ o i n t @ s u b s c r i p t $} } ˆ{ \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } \ d e f \ @ b i g o i n t s s s u b n o s u p {\mathop{\ t e x t {\LARGE$\ o i n t { \ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e \ @ o i n t @ s u b s c r i p t $} } $} } \ n o l i m i t s } 73 \ d e f \ @ b i g o i n t s s n o s u b {\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s s n o s u b s u p \ @ b i g o i n t s s n o s u b n o s u p } \ d e f \ @ b i g o i n t s s n o s u b s u p ˆ#1{\mathop{\ t e x t {\LARGE$\ o i n t ˆ{\ t e x t {\ n o r m a l s i z e $\ s c r i p t s t y l e #1$}}$}}\ n o l i m i t s } 75 \ d e f \ @ b i g o i n t s s n o s u b n o s u p {\mathop{\ t e x t {\LARGE$\ o i n t $}}\ n o l i m i t s } \newcommand{\ b i g o i n t s s s }{\ @ i f n e x t c h a r \ @ b i g o i n t s s s s u b \ @ b i g o i n t s s s n o s u b} 77 \ d e f \ @ b i g o i n t s s s s u b #1{\ d e f \ @ o i n t @ s u b s c r i p t {#1}\ @ i f n e x t c h a r ˆ\ @ b i g o i n t s s s s u b s u p\ @ b i g o i n t s s s s u b n o s u p }

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\ r e l a x

5 Limitations

This package has currently no limitation.

6 Remarks

Not yet.

7 Bugs

Not yet.

8 Version History

1. v1.0: package is introduced to the L

A

_{TEX world,}

2. v1.1: new commands (\bigoint, \bigoints, \bigointss, \bigointsss and

\bigointssss) are available.

9 Contact

If you have any question concerning this package (limitations, bugs, . . . ), please

contact me at

Luca.Merciadri@student.ulg.ac.be

.

10 Credits

Thanks to pg for his related trick, in the message on

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Index

bigintssss,

3 bigintsss,

3 bigintss,

3 bigints,

3 bigint,

3 bigointssss,

3 bigointsss,

3 bigointss,

3 bigoints,

3 bigoint,

3

The bigints package