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representation of vector and matrix in latex

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representation of vector and matrix in latex

2

i'm working on my latex thesis and i want to represent this equation, matrix is upperCase letter with 2 lines under it, and vector just one line below, see the picture attached

can someone help me out with a way to represent it

matrices vector

share|improve this question

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  that seems very much a "blackboard" notation, do you really want that in a typeset paper? (underline{.} and underline{underline{.}} probably do what you want but....
  
  – David Carlisle
  4 hours ago
  

  
  
  
  

add a comment | 

2

i'm working on my latex thesis and i want to represent this equation, matrix is upperCase letter with 2 lines under it, and vector just one line below, see the picture attached

can someone help me out with a way to represent it

matrices vector

share|improve this question

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  that seems very much a "blackboard" notation, do you really want that in a typeset paper? (underline{.} and underline{underline{.}} probably do what you want but....
  
  – David Carlisle
  4 hours ago
  

  
  
  
  

add a comment | 

i'm working on my latex thesis and i want to represent this equation, matrix is upperCase letter with 2 lines under it, and vector just one line below, see the picture attached

can someone help me out with a way to represent it

matrices vector

share|improve this question

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

share|improve this question

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

share|improve this question

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

edited 4 hours ago

Phelype Oleinik

25.5k54690

edited 4 hours ago

Phelype Oleinik

25.5k54690

asked 4 hours ago

sana chsana ch

133

New contributor

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

asked 4 hours ago

sana chsana ch

133

2 Answers
2

active

oldest

votes

1

The immediate problem can be solved with an array, with a local setting of arraystretch for reducing the gap between the two rows.

documentclass{article}

usepackage{amsmath,bm}



% old fashioned notation for the old fashioned supervisor

newcommand{vect}[1]{underline{#1}}

newcommand{matr}[1]{underline{underline{#1}}}



% better for typesetting

%newcommand{vect}[1]{mathbf{#1}} % or bm

%newcommand{matr}[1]{mathbf{#1}} % or bm



begin{document}



Here $vect{Q}$ and $vect{w}$ are column vectors and $matr{A}$ is a matrix

[

renewcommand{arraystretch}{0.7}

begin{array}{@{} c @{} c @{} c @{;} c @{}}

vect{Q} & {}={} & matr{A} & vect{w} \

scriptscriptstyle mtimes 1 &&

scriptscriptstyle mtimes n &

scriptscriptstyle ntimes 1

end{array}

]



end{document}

I strongly advise to use macros for inputting matrices and vectors. When your supervisor will realize that the old-fashioned notation is also very ugly in print (it was used in the typewriter times), you can simply change the definitions. If you switch the comments in the code above, the result will be

without changing the code in the document body.

share|improve this answer

answered 3 hours ago

egregegreg

735k8919343257

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thank you so much that's exactly what i'm searching for, i appreciate your help
  
  – sana ch
  2 hours ago
  

  
  
  
  

add a comment | 

1

The notational possibilities are sheer endless. Which notational practice you wish to adopt may be dictated by typographic conventions specific to a field, a language, a country, etc. LaTeX and TeX don't prescribe any particular notational practice.

The following screenshot shows five possibilities; I have no doubt that there are many more. Echoing a thought already expressed by David Carlisle, "blackboard-style" notational conventions (e.g., with one or two underlines) are not necessarily the best when applied to typeset, as opposed to hand-written, material.

documentclass{article}

usepackage{amsmath,bm}

begin{document}



begin{align*}

Q &= Aw \

mathrm{Q} &= mathrm{A}mathrm{w}\

mathbf{Q} &= mathbf{A}mathbf{w}\

vec{Q} &= Avec{w}\

bm{Q} &= bm{A}bm{w}

end{align*}

end{document}

share|improve this answer

answered 4 hours ago

MicoMico

287k32392781

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  thank you for your reply, i share the same opinion as you, i think it's a blaskboard notation but my supervisor insist to do it this way in my thesis
  
  – sana ch
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach - If your supervisor is so strongly wedded to this borderline unsuitable typographic convention, just show him the output of underline{Q}=underline{underline{A}},underline{w} and ask him for permission to use a different, non-disastrous notation for vectors and matrices. :-)
  
  – Mico
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach Explaining matrix multiplication in a thesis? That's what every sophomore should know!
  
  – egreg
  3 hours ago
  

  
  
  
  

add a comment | 

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1

The immediate problem can be solved with an array, with a local setting of arraystretch for reducing the gap between the two rows.

documentclass{article}

usepackage{amsmath,bm}



% old fashioned notation for the old fashioned supervisor

newcommand{vect}[1]{underline{#1}}

newcommand{matr}[1]{underline{underline{#1}}}



% better for typesetting

%newcommand{vect}[1]{mathbf{#1}} % or bm

%newcommand{matr}[1]{mathbf{#1}} % or bm



begin{document}



Here $vect{Q}$ and $vect{w}$ are column vectors and $matr{A}$ is a matrix

[

renewcommand{arraystretch}{0.7}

begin{array}{@{} c @{} c @{} c @{;} c @{}}

vect{Q} & {}={} & matr{A} & vect{w} \

scriptscriptstyle mtimes 1 &&

scriptscriptstyle mtimes n &

scriptscriptstyle ntimes 1

end{array}

]



end{document}

I strongly advise to use macros for inputting matrices and vectors. When your supervisor will realize that the old-fashioned notation is also very ugly in print (it was used in the typewriter times), you can simply change the definitions. If you switch the comments in the code above, the result will be

without changing the code in the document body.

share|improve this answer

answered 3 hours ago

egregegreg

735k8919343257

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thank you so much that's exactly what i'm searching for, i appreciate your help
  
  – sana ch
  2 hours ago
  

  
  
  
  

add a comment | 

1

The immediate problem can be solved with an array, with a local setting of arraystretch for reducing the gap between the two rows.

documentclass{article}

usepackage{amsmath,bm}



% old fashioned notation for the old fashioned supervisor

newcommand{vect}[1]{underline{#1}}

newcommand{matr}[1]{underline{underline{#1}}}



% better for typesetting

%newcommand{vect}[1]{mathbf{#1}} % or bm

%newcommand{matr}[1]{mathbf{#1}} % or bm



begin{document}



Here $vect{Q}$ and $vect{w}$ are column vectors and $matr{A}$ is a matrix

[

renewcommand{arraystretch}{0.7}

begin{array}{@{} c @{} c @{} c @{;} c @{}}

vect{Q} & {}={} & matr{A} & vect{w} \

scriptscriptstyle mtimes 1 &&

scriptscriptstyle mtimes n &

scriptscriptstyle ntimes 1

end{array}

]



end{document}

I strongly advise to use macros for inputting matrices and vectors. When your supervisor will realize that the old-fashioned notation is also very ugly in print (it was used in the typewriter times), you can simply change the definitions. If you switch the comments in the code above, the result will be

without changing the code in the document body.

share|improve this answer

answered 3 hours ago

egregegreg

735k8919343257

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thank you so much that's exactly what i'm searching for, i appreciate your help
  
  – sana ch
  2 hours ago
  

  
  
  
  

add a comment | 

The immediate problem can be solved with an array, with a local setting of arraystretch for reducing the gap between the two rows.

documentclass{article}

usepackage{amsmath,bm}



% old fashioned notation for the old fashioned supervisor

newcommand{vect}[1]{underline{#1}}

newcommand{matr}[1]{underline{underline{#1}}}



% better for typesetting

%newcommand{vect}[1]{mathbf{#1}} % or bm

%newcommand{matr}[1]{mathbf{#1}} % or bm



begin{document}



Here $vect{Q}$ and $vect{w}$ are column vectors and $matr{A}$ is a matrix

[

renewcommand{arraystretch}{0.7}

begin{array}{@{} c @{} c @{} c @{;} c @{}}

vect{Q} & {}={} & matr{A} & vect{w} \

scriptscriptstyle mtimes 1 &&

scriptscriptstyle mtimes n &

scriptscriptstyle ntimes 1

end{array}

]



end{document}

I strongly advise to use macros for inputting matrices and vectors. When your supervisor will realize that the old-fashioned notation is also very ugly in print (it was used in the typewriter times), you can simply change the definitions. If you switch the comments in the code above, the result will be

without changing the code in the document body.

share|improve this answer

answered 3 hours ago

egregegreg

735k8919343257

documentclass{article}

usepackage{amsmath,bm}



% old fashioned notation for the old fashioned supervisor

newcommand{vect}[1]{underline{#1}}

newcommand{matr}[1]{underline{underline{#1}}}



% better for typesetting

%newcommand{vect}[1]{mathbf{#1}} % or bm

%newcommand{matr}[1]{mathbf{#1}} % or bm



begin{document}



Here $vect{Q}$ and $vect{w}$ are column vectors and $matr{A}$ is a matrix

[

renewcommand{arraystretch}{0.7}

begin{array}{@{} c @{} c @{} c @{;} c @{}}

vect{Q} & {}={} & matr{A} & vect{w} \

scriptscriptstyle mtimes 1 &&

scriptscriptstyle mtimes n &

scriptscriptstyle ntimes 1

end{array}

]



end{document}

share|improve this answer

answered 3 hours ago

egregegreg

735k8919343257

answered 3 hours ago

egregegreg

735k8919343257

answered 3 hours ago

egregegreg

735k8919343257

1

The notational possibilities are sheer endless. Which notational practice you wish to adopt may be dictated by typographic conventions specific to a field, a language, a country, etc. LaTeX and TeX don't prescribe any particular notational practice.

The following screenshot shows five possibilities; I have no doubt that there are many more. Echoing a thought already expressed by David Carlisle, "blackboard-style" notational conventions (e.g., with one or two underlines) are not necessarily the best when applied to typeset, as opposed to hand-written, material.

documentclass{article}

usepackage{amsmath,bm}

begin{document}



begin{align*}

Q &= Aw \

mathrm{Q} &= mathrm{A}mathrm{w}\

mathbf{Q} &= mathbf{A}mathbf{w}\

vec{Q} &= Avec{w}\

bm{Q} &= bm{A}bm{w}

end{align*}

end{document}

share|improve this answer

answered 4 hours ago

MicoMico

287k32392781

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  thank you for your reply, i share the same opinion as you, i think it's a blaskboard notation but my supervisor insist to do it this way in my thesis
  
  – sana ch
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach - If your supervisor is so strongly wedded to this borderline unsuitable typographic convention, just show him the output of underline{Q}=underline{underline{A}},underline{w} and ask him for permission to use a different, non-disastrous notation for vectors and matrices. :-)
  
  – Mico
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach Explaining matrix multiplication in a thesis? That's what every sophomore should know!
  
  – egreg
  3 hours ago
  

  
  
  
  

add a comment | 

1

The notational possibilities are sheer endless. Which notational practice you wish to adopt may be dictated by typographic conventions specific to a field, a language, a country, etc. LaTeX and TeX don't prescribe any particular notational practice.

The following screenshot shows five possibilities; I have no doubt that there are many more. Echoing a thought already expressed by David Carlisle, "blackboard-style" notational conventions (e.g., with one or two underlines) are not necessarily the best when applied to typeset, as opposed to hand-written, material.

documentclass{article}

usepackage{amsmath,bm}

begin{document}



begin{align*}

Q &= Aw \

mathrm{Q} &= mathrm{A}mathrm{w}\

mathbf{Q} &= mathbf{A}mathbf{w}\

vec{Q} &= Avec{w}\

bm{Q} &= bm{A}bm{w}

end{align*}

end{document}

share|improve this answer

answered 4 hours ago

MicoMico

287k32392781

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  thank you for your reply, i share the same opinion as you, i think it's a blaskboard notation but my supervisor insist to do it this way in my thesis
  
  – sana ch
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach - If your supervisor is so strongly wedded to this borderline unsuitable typographic convention, just show him the output of underline{Q}=underline{underline{A}},underline{w} and ask him for permission to use a different, non-disastrous notation for vectors and matrices. :-)
  
  – Mico
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @sanach Explaining matrix multiplication in a thesis? That's what every sophomore should know!
  
  – egreg
  3 hours ago
  

  
  
  
  

add a comment | 

The notational possibilities are sheer endless. Which notational practice you wish to adopt may be dictated by typographic conventions specific to a field, a language, a country, etc. LaTeX and TeX don't prescribe any particular notational practice.

The following screenshot shows five possibilities; I have no doubt that there are many more. Echoing a thought already expressed by David Carlisle, "blackboard-style" notational conventions (e.g., with one or two underlines) are not necessarily the best when applied to typeset, as opposed to hand-written, material.

documentclass{article}

usepackage{amsmath,bm}

begin{document}



begin{align*}

Q &= Aw \

mathrm{Q} &= mathrm{A}mathrm{w}\

mathbf{Q} &= mathbf{A}mathbf{w}\

vec{Q} &= Avec{w}\

bm{Q} &= bm{A}bm{w}

end{align*}

end{document}

share|improve this answer

answered 4 hours ago

MicoMico

287k32392781

documentclass{article}

usepackage{amsmath,bm}

begin{document}



begin{align*}

Q &= Aw \

mathrm{Q} &= mathrm{A}mathrm{w}\

mathbf{Q} &= mathbf{A}mathbf{w}\

vec{Q} &= Avec{w}\

bm{Q} &= bm{A}bm{w}

end{align*}

end{document}

share|improve this answer

answered 4 hours ago

MicoMico

287k32392781

answered 4 hours ago

MicoMico

287k32392781

answered 4 hours ago

MicoMico

287k32392781