New line does not appear in 'cases' environment

up vote
4
down vote

favorite

documentclass[12pt]{report}



begin{document}



$$(v_n) begin{cases} u_0=frac{1}{2} \ r=7 end{cases}$$



end{document}

Result :

enter image description here

I'm trying to make a multiline equation but when I use the code above it does not appear on multiple lines.

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

1

Welcome to TeX.SE! Please make your code a full compilable example that shows your problem (starting from documentclass , ending in end{document} and containing all the code and packages needed just to show clearly your problem -without not needed packages and extra code that has nothing to do with your problem-)... This is called a MWE (Minimal Working Example) and is almost a mast in order to get a fast and accurate answer.
– koleygr
Nov 8 at 8:51

Thanks for the comment, just modified my question to be more understandable.
– Gaëtan Ballèvre Rio
Nov 8 at 9:00

1

Welcome... I wanted to see there what is the spaces environment and how to use it... But you miss-spelled the cases... corrected.
– koleygr
Nov 8 at 9:01

@GaëtanBallèvreRio The excellent user koleygr have written an important reason. You have not put any package for write your formula.
– Sebastiano
Nov 8 at 9:02

For historical reasons, LaTeX defines a cases command, which is used here and it's just by chance you get no error.
– egreg
Nov 8 at 9:35

add a comment |

up vote
4
down vote

favorite

documentclass[12pt]{report}



begin{document}



$$(v_n) begin{cases} u_0=frac{1}{2} \ r=7 end{cases}$$



end{document}

Result :

enter image description here

I'm trying to make a multiline equation but when I use the code above it does not appear on multiple lines.

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

1

Welcome to TeX.SE! Please make your code a full compilable example that shows your problem (starting from documentclass , ending in end{document} and containing all the code and packages needed just to show clearly your problem -without not needed packages and extra code that has nothing to do with your problem-)... This is called a MWE (Minimal Working Example) and is almost a mast in order to get a fast and accurate answer.
– koleygr
Nov 8 at 8:51

Thanks for the comment, just modified my question to be more understandable.
– Gaëtan Ballèvre Rio
Nov 8 at 9:00

1

Welcome... I wanted to see there what is the spaces environment and how to use it... But you miss-spelled the cases... corrected.
– koleygr
Nov 8 at 9:01

@GaëtanBallèvreRio The excellent user koleygr have written an important reason. You have not put any package for write your formula.
– Sebastiano
Nov 8 at 9:02

For historical reasons, LaTeX defines a cases command, which is used here and it's just by chance you get no error.
– egreg
Nov 8 at 9:35

add a comment |

up vote
4
down vote

favorite

documentclass[12pt]{report}



begin{document}



$$(v_n) begin{cases} u_0=frac{1}{2} \ r=7 end{cases}$$



end{document}

Result :

enter image description here

I'm trying to make a multiline equation but when I use the code above it does not appear on multiple lines.

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

documentclass[12pt]{report}



begin{document}



$$(v_n) begin{cases} u_0=frac{1}{2} \ r=7 end{cases}$$



end{document}

Result :

enter image description here

I'm trying to make a multiline equation but when I use the code above it does not appear on multiple lines.

math-mode

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

edited Nov 8 at 9:26

Mico

268k30363748

edited Nov 8 at 9:26

Mico

268k30363748

edited Nov 8 at 9:26

Mico

268k30363748

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

asked Nov 8 at 8:46

Gaëtan Ballèvre Rio

234

New contributor

Gaëtan Ballèvre Rio is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

1

Welcome to TeX.SE! Please make your code a full compilable example that shows your problem (starting from documentclass , ending in end{document} and containing all the code and packages needed just to show clearly your problem -without not needed packages and extra code that has nothing to do with your problem-)... This is called a MWE (Minimal Working Example) and is almost a mast in order to get a fast and accurate answer.
– koleygr
Nov 8 at 8:51

Thanks for the comment, just modified my question to be more understandable.
– Gaëtan Ballèvre Rio
Nov 8 at 9:00

1

Welcome... I wanted to see there what is the spaces environment and how to use it... But you miss-spelled the cases... corrected.
– koleygr
Nov 8 at 9:01

@GaëtanBallèvreRio The excellent user koleygr have written an important reason. You have not put any package for write your formula.
– Sebastiano
Nov 8 at 9:02

For historical reasons, LaTeX defines a cases command, which is used here and it's just by chance you get no error.
– egreg
Nov 8 at 9:35

add a comment |

1

Welcome to TeX.SE! Please make your code a full compilable example that shows your problem (starting from documentclass , ending in end{document} and containing all the code and packages needed just to show clearly your problem -without not needed packages and extra code that has nothing to do with your problem-)... This is called a MWE (Minimal Working Example) and is almost a mast in order to get a fast and accurate answer.
– koleygr
Nov 8 at 8:51

Thanks for the comment, just modified my question to be more understandable.
– Gaëtan Ballèvre Rio
Nov 8 at 9:00

1

Welcome... I wanted to see there what is the spaces environment and how to use it... But you miss-spelled the cases... corrected.
– koleygr
Nov 8 at 9:01

@GaëtanBallèvreRio The excellent user koleygr have written an important reason. You have not put any package for write your formula.
– Sebastiano
Nov 8 at 9:02

For historical reasons, LaTeX defines a cases command, which is used here and it's just by chance you get no error.
– egreg
Nov 8 at 9:35

Welcome to TeX.SE! Please make your code a full compilable example that shows your problem (starting from documentclass , ending in end{document} and containing all the code and packages needed just to show clearly your problem -without not needed packages and extra code that has nothing to do with your problem-)... This is called a MWE (Minimal Working Example) and is almost a mast in order to get a fast and accurate answer.
– koleygr
Nov 8 at 8:51

Thanks for the comment, just modified my question to be more understandable.
– Gaëtan Ballèvre Rio
Nov 8 at 9:00

Welcome... I wanted to see there what is the spaces environment and how to use it... But you miss-spelled the cases... corrected.
– koleygr
Nov 8 at 9:01

@GaëtanBallèvreRio The excellent user koleygr have written an important reason. You have not put any package for write your formula.
– Sebastiano
Nov 8 at 9:02

For historical reasons, LaTeX defines a cases command, which is used here and it's just by chance you get no error.
– egreg
Nov 8 at 9:35

add a comment |

1 Answer
1

active

oldest

votes

up vote
4
down vote

accepted

Two observations:

The double sign ($$...$$) method of initiating and terminating display-math material is deprecated in LaTeX documents. You should use [...] instead.

It is very important to know your preamble. The cases environment is not defined by the LaTeX kernel. It's necessary to load either the amsmath package or the mathtools package (a superset of the amsmath package) in order to be able to use the cases environment.

enter image description here

documentclass[12pt]{article}

usepackage{mathtools}



begin{document}

[(v_n) =begin{cases} u_0=frac{1}{2} \ r=7 end{cases}]

end{document}

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

1

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

add a comment |

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up vote
4
down vote

accepted

Two observations:

The double sign ($$...$$) method of initiating and terminating display-math material is deprecated in LaTeX documents. You should use [...] instead.

It is very important to know your preamble. The cases environment is not defined by the LaTeX kernel. It's necessary to load either the amsmath package or the mathtools package (a superset of the amsmath package) in order to be able to use the cases environment.

enter image description here

documentclass[12pt]{article}

usepackage{mathtools}



begin{document}

[(v_n) =begin{cases} u_0=frac{1}{2} \ r=7 end{cases}]

end{document}

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

1

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

add a comment |

up vote
4
down vote

accepted

Two observations:

The double sign ($$...$$) method of initiating and terminating display-math material is deprecated in LaTeX documents. You should use [...] instead.

It is very important to know your preamble. The cases environment is not defined by the LaTeX kernel. It's necessary to load either the amsmath package or the mathtools package (a superset of the amsmath package) in order to be able to use the cases environment.

enter image description here

documentclass[12pt]{article}

usepackage{mathtools}



begin{document}

[(v_n) =begin{cases} u_0=frac{1}{2} \ r=7 end{cases}]

end{document}

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

1

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

add a comment |

up vote
4
down vote

accepted

Two observations:

The double sign ($$...$$) method of initiating and terminating display-math material is deprecated in LaTeX documents. You should use [...] instead.

It is very important to know your preamble. The cases environment is not defined by the LaTeX kernel. It's necessary to load either the amsmath package or the mathtools package (a superset of the amsmath package) in order to be able to use the cases environment.

enter image description here

documentclass[12pt]{article}

usepackage{mathtools}



begin{document}

[(v_n) =begin{cases} u_0=frac{1}{2} \ r=7 end{cases}]

end{document}

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

Two observations:

The double sign ($$...$$) method of initiating and terminating display-math material is deprecated in LaTeX documents. You should use [...] instead.

It is very important to know your preamble. The cases environment is not defined by the LaTeX kernel. It's necessary to load either the amsmath package or the mathtools package (a superset of the amsmath package) in order to be able to use the cases environment.

enter image description here

documentclass[12pt]{article}

usepackage{mathtools}



begin{document}

[(v_n) =begin{cases} u_0=frac{1}{2} \ r=7 end{cases}]

end{document}

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

edited Nov 8 at 9:24

Mico

268k30363748

edited Nov 8 at 9:24

Mico

268k30363748

edited Nov 8 at 9:24

Mico

268k30363748

answered Nov 8 at 8:56

Sebastiano

8,21041754

answered Nov 8 at 8:56

Sebastiano

8,21041754

answered Nov 8 at 8:56

Sebastiano

8,21041754

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

1

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

add a comment |

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

1

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

Thanks for the answer, importing the mathtools package solved the problem. I don't quite understand why but it's working ! Also thanks for the good practice of using [...] instead of $$...$$.
– Gaëtan Ballèvre Rio
Nov 8 at 9:08

We are here to help all of us and we all have to help each other. For me this is the spirit of the TeX.SE site which is an excellent site where there are very good people. Your code can work very well using other packages, but it is also important that you insert next time a complete small example that reproduces the problem and that you also read some guides. I'll send you my regards.
– Sebastiano
Nov 8 at 9:11

add a comment |

Gaëtan Ballèvre Rio is a new contributor. Be nice, and check out our Code of Conduct.

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