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Why left alignment not working


aligning a multiline formula with the bullet of itemizeVertical aligning text and vertical height of rows in longtable environmentTikz matrix vertical alignmentTable Vertical Alignment not functioningHow do I align the text in a cell to the top left?Two columns; Space before left alignment; placement of QED symbolVertical alignment of arrays in an arrayAligning a picture and words in a presentationHow can I vertically center numbering for multi-line equation inside align environment?Vertical alignment of different systems of equations













0















Here is my code



begin{align*}
underline{mathbf{r}}_k =
left[
begin{array}{ccc}
&r_{k}^{} \
&r_{k-1}^{} \
&vdots\
&r_{k-I_1I_2+1}^{}
end{array}
right],%tag{}
end{align*}


I wanted r's to be aligned from left but this doesnt seen to work. Any idea










share|improve this question




















  • 2





    Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

    – marmot
    12 mins ago








  • 2





    begin{array}{@{}l@{}} and no &.

    – egreg
    12 mins ago








  • 1





    Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

    – Jonathan
    11 mins ago






  • 1





    also do not use align* at the outer level as you only have one row, use [..]

    – David Carlisle
    10 mins ago
















0















Here is my code



begin{align*}
underline{mathbf{r}}_k =
left[
begin{array}{ccc}
&r_{k}^{} \
&r_{k-1}^{} \
&vdots\
&r_{k-I_1I_2+1}^{}
end{array}
right],%tag{}
end{align*}


I wanted r's to be aligned from left but this doesnt seen to work. Any idea










share|improve this question




















  • 2





    Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

    – marmot
    12 mins ago








  • 2





    begin{array}{@{}l@{}} and no &.

    – egreg
    12 mins ago








  • 1





    Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

    – Jonathan
    11 mins ago






  • 1





    also do not use align* at the outer level as you only have one row, use [..]

    – David Carlisle
    10 mins ago














0












0








0








Here is my code



begin{align*}
underline{mathbf{r}}_k =
left[
begin{array}{ccc}
&r_{k}^{} \
&r_{k-1}^{} \
&vdots\
&r_{k-I_1I_2+1}^{}
end{array}
right],%tag{}
end{align*}


I wanted r's to be aligned from left but this doesnt seen to work. Any idea










share|improve this question
















Here is my code



begin{align*}
underline{mathbf{r}}_k =
left[
begin{array}{ccc}
&r_{k}^{} \
&r_{k-1}^{} \
&vdots\
&r_{k-I_1I_2+1}^{}
end{array}
right],%tag{}
end{align*}


I wanted r's to be aligned from left but this doesnt seen to work. Any idea







horizontal-alignment matrices






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 11 mins ago









David Carlisle

501k4211481897




501k4211481897










asked 14 mins ago









NAASINAASI

1,23021626




1,23021626








  • 2





    Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

    – marmot
    12 mins ago








  • 2





    begin{array}{@{}l@{}} and no &.

    – egreg
    12 mins ago








  • 1





    Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

    – Jonathan
    11 mins ago






  • 1





    also do not use align* at the outer level as you only have one row, use [..]

    – David Carlisle
    10 mins ago














  • 2





    Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

    – marmot
    12 mins ago








  • 2





    begin{array}{@{}l@{}} and no &.

    – egreg
    12 mins ago








  • 1





    Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

    – Jonathan
    11 mins ago






  • 1





    also do not use align* at the outer level as you only have one row, use [..]

    – David Carlisle
    10 mins ago








2




2





Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

– marmot
12 mins ago







Why do you expect that the cs in ` begin{array}{ccc}` yield left alignment? E.g. documentclass{article} usepackage{amsmath} begin{document} begin{align*} underline{mathbf{r}}_k = left[ begin{array}{l} r_{k}^{} \ r_{k-1}^{} \ vdots\ r_{k-I_1I_2+1}^{} end{array} right],%tag{} end{align*} end{document} or what @egreg writes below.

– marmot
12 mins ago






2




2





begin{array}{@{}l@{}} and no &.

– egreg
12 mins ago







begin{array}{@{}l@{}} and no &.

– egreg
12 mins ago






1




1





Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

– Jonathan
11 mins ago





Why do you define 3 columns, if you only have 2 and even from the 2 the first one is empty?

– Jonathan
11 mins ago




1




1





also do not use align* at the outer level as you only have one row, use [..]

– David Carlisle
10 mins ago





also do not use align* at the outer level as you only have one row, use [..]

– David Carlisle
10 mins ago










1 Answer
1






active

oldest

votes


















2














documentclass{article}
usepackage{mathtools}
begin{document}

[
underline{mathbf{r}}_k =
begin{bmatrix*}[l]
r_{k}^{} \
r_{k-1}^{} \
vdots\
r_{k-I_1I_2+1}^{}
end{bmatrix*}
]

end{document}



enter image description here






share
























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    2














    documentclass{article}
    usepackage{mathtools}
    begin{document}

    [
    underline{mathbf{r}}_k =
    begin{bmatrix*}[l]
    r_{k}^{} \
    r_{k-1}^{} \
    vdots\
    r_{k-I_1I_2+1}^{}
    end{bmatrix*}
    ]

    end{document}



    enter image description here






    share




























      2














      documentclass{article}
      usepackage{mathtools}
      begin{document}

      [
      underline{mathbf{r}}_k =
      begin{bmatrix*}[l]
      r_{k}^{} \
      r_{k-1}^{} \
      vdots\
      r_{k-I_1I_2+1}^{}
      end{bmatrix*}
      ]

      end{document}



      enter image description here






      share


























        2












        2








        2







        documentclass{article}
        usepackage{mathtools}
        begin{document}

        [
        underline{mathbf{r}}_k =
        begin{bmatrix*}[l]
        r_{k}^{} \
        r_{k-1}^{} \
        vdots\
        r_{k-I_1I_2+1}^{}
        end{bmatrix*}
        ]

        end{document}



        enter image description here






        share













        documentclass{article}
        usepackage{mathtools}
        begin{document}

        [
        underline{mathbf{r}}_k =
        begin{bmatrix*}[l]
        r_{k}^{} \
        r_{k-1}^{} \
        vdots\
        r_{k-I_1I_2+1}^{}
        end{bmatrix*}
        ]

        end{document}



        enter image description here







        share











        share


        share










        answered 7 mins ago









        AboAmmarAboAmmar

        34.9k32985




        34.9k32985






























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