Why isn't ddots working while vdots works?












1














I have the following matrix



usepackage{amsmath}

usepackage{amssymb}



$$

M=begin{bmatrix}

frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \

 frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \

$vdots$ & $vdots$ & $vdots$ & $vdots$ \

 frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p) \



end{bmatrix}$$


which complies nicely. However, in the third line of the matrix, I would like to change the third "vdots" to a "ddots". If I do so, I get the following error:




LaTex Warning: No author given.



(The directory on my computer)



!Missing $ inserted.



< inserted text >



$



I.72 $vdots$ & $vdots$ & $ddots



$ & $vdots$



?




Could anybody help please?






errors amsmath







share|improve this question




















  • 1




    It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
    – alephzero
    4 hours ago






  • 1




    @marmot LOL fixed it
    – Ovi
    4 hours ago










  • @alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
    – Ovi
    4 hours ago










  • You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
    – marmot
    4 hours ago










  • @marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
    – Ovi
    4 hours ago


















1














I have the following matrix



usepackage{amsmath}

usepackage{amssymb}



$$

M=begin{bmatrix}

frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \

 frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \

$vdots$ & $vdots$ & $vdots$ & $vdots$ \

 frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p) \



end{bmatrix}$$


which complies nicely. However, in the third line of the matrix, I would like to change the third "vdots" to a "ddots". If I do so, I get the following error:




LaTex Warning: No author given.



(The directory on my computer)



!Missing $ inserted.



< inserted text >



$



I.72 $vdots$ & $vdots$ & $ddots



$ & $vdots$



?




Could anybody help please?






errors amsmath







share|improve this question




















  • 1




    It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
    – alephzero
    4 hours ago






  • 1




    @marmot LOL fixed it
    – Ovi
    4 hours ago










  • @alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
    – Ovi
    4 hours ago










  • You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
    – marmot
    4 hours ago










  • @marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
    – Ovi
    4 hours ago
















1












1








1







I have the following matrix



usepackage{amsmath}

usepackage{amssymb}



$$

M=begin{bmatrix}

frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \

 frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \

$vdots$ & $vdots$ & $vdots$ & $vdots$ \

 frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p) \



end{bmatrix}$$


which complies nicely. However, in the third line of the matrix, I would like to change the third "vdots" to a "ddots". If I do so, I get the following error:




LaTex Warning: No author given.



(The directory on my computer)



!Missing $ inserted.



< inserted text >



$



I.72 $vdots$ & $vdots$ & $ddots



$ & $vdots$



?




Could anybody help please?






errors amsmath







share|improve this question















I have the following matrix



usepackage{amsmath}

usepackage{amssymb}



$$

M=begin{bmatrix}

frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \

 frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \

$vdots$ & $vdots$ & $vdots$ & $vdots$ \

 frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p) \



end{bmatrix}$$


which complies nicely. However, in the third line of the matrix, I would like to change the third "vdots" to a "ddots". If I do so, I get the following error:




LaTex Warning: No author given.



(The directory on my computer)



!Missing $ inserted.



< inserted text >



$



I.72 $vdots$ & $vdots$ & $ddots



$ & $vdots$



?




Could anybody help please?






errors amsmath




errors amsmath






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago

























asked 4 hours ago









Ovi

1354




1354








  • 1




    It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
    – alephzero
    4 hours ago






  • 1




    @marmot LOL fixed it
    – Ovi
    4 hours ago










  • @alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
    – Ovi
    4 hours ago










  • You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
    – marmot
    4 hours ago










  • @marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
    – Ovi
    4 hours ago
















  • 1




    It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
    – alephzero
    4 hours ago






  • 1




    @marmot LOL fixed it
    – Ovi
    4 hours ago










  • @alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
    – Ovi
    4 hours ago










  • You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
    – marmot
    4 hours ago










  • @marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
    – Ovi
    4 hours ago










1




1




It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
– alephzero
4 hours ago




It only "compiles nicely" if you ignore the error messages. Everything between $$…$$ is already in math mode, so you don't need more $...$ around the vdots
– alephzero
4 hours ago




1




1




@marmot LOL fixed it
– Ovi
4 hours ago




@marmot LOL fixed it
– Ovi
4 hours ago












@alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
– Ovi
4 hours ago




@alephzero Ah thanks got it; unfortunately I am using TexWorks and when it complies it does not open the window with the error messages, so I was not aware I had any.
– Ovi
4 hours ago












You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
– marmot
4 hours ago




You might want to replace $$ ... $$ by [ .. ], add a documentclass, begin{document} and end{document}.
– marmot
4 hours ago












@marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
– Ovi
4 hours ago






@marmot I have the begin/end document and document class; I just wanted to show the packages I was using in case it affected the answer. That's interesting, I didn't know that [ could replace $$. I am used to the latter from math.stackexchange. Is there any benefit to using the former?
– Ovi
4 hours ago












1 Answer
1






active

oldest

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3














Once you use [...], you're in display math mode and therefore don't need to supply in-line $...$ around math content:



enter image description here



documentclass{article}



usepackage{amsmath,amssymb}



begin{document}



[

  M = begin{bmatrix}

    frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \

    frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \

                 vdots                  &              vdots                  & ddots &              vdots                  \

    frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p)

  end{bmatrix}

]



end{document}





share|improve this answer





















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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

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    active

    oldest

    votes






    active

    oldest

    votes









    3














    Once you use [...], you're in display math mode and therefore don't need to supply in-line $...$ around math content:



    enter image description here



    documentclass{article}
    

    
usepackage{amsmath,amssymb}
    

    
begin{document}
    

    
[
    
  M = begin{bmatrix}
    
    frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \
    
    frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \
    
                 vdots                  &              vdots                  & ddots &              vdots                  \
    
    frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p)
    
  end{bmatrix}
    
]
    

    
end{document}





    share|improve this answer


























      3














      Once you use [...], you're in display math mode and therefore don't need to supply in-line $...$ around math content:



      enter image description here



      documentclass{article}
      

      
usepackage{amsmath,amssymb}
      

      
begin{document}
      

      
[
      
  M = begin{bmatrix}
      
    frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \
      
    frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \
      
                 vdots                  &              vdots                  & ddots &              vdots                  \
      
    frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p)
      
  end{bmatrix}
      
]
      

      
end{document}





      share|improve this answer
























        3












        3








        3






        Once you use [...], you're in display math mode and therefore don't need to supply in-line $...$ around math content:



        enter image description here



        documentclass{article}
        

        
usepackage{amsmath,amssymb}
        

        
begin{document}
        

        
[
        
  M = begin{bmatrix}
        
    frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \
        
    frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \
        
                 vdots                  &              vdots                  & ddots &              vdots                  \
        
    frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p)
        
  end{bmatrix}
        
]
        

        
end{document}





        share|improve this answer












        Once you use [...], you're in display math mode and therefore don't need to supply in-line $...$ around math content:



        enter image description here



        documentclass{article}
        

        
usepackage{amsmath,amssymb}
        

        
begin{document}
        

        
[
        
  M = begin{bmatrix}
        
    frac{partial f_1}{partial x_1}(p) & frac{partial f_1}{partial x_2}(p) & cdots & frac{partial f_1}{partial x_n}(p) \
        
    frac{partial f_2}{partial x_1}(p) & frac{partial f_2}{partial x_2}(p) & cdots & frac{partial f_2}{partial x_n}(p) \
        
                 vdots                  &              vdots                  & ddots &              vdots                  \
        
    frac{partial f_m}{partial x_1}(p) & frac{partial f_m}{partial x_2}(p) & cdots & frac{partial f_m}{partial x_n}(p)
        
  end{bmatrix}
        
]
        

        
end{document}






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 2 hours ago









        Werner

        437k649581648




        437k649581648






























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