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How do I nest cases?



The Next CEO of Stack OverflowAligning equations in a cases environmentHow to write cases with LaTeX?How to customize the equation numbering in book document class?How resize box when using subnumcaseHow can I do this equation?how to break long equations in cases latex?How to write equations with arrow and illustrationEquation in LatexIncorrect horizontal spacing in cases modeUsing numcases with cases










6















I am new to LaTeX. I know how to write basic equations in LaTeX. However, the following equation seems to be too difficult for me. Please help me with this. Thank you.



enter image description here










share|improve this question




























    6















    I am new to LaTeX. I know how to write basic equations in LaTeX. However, the following equation seems to be too difficult for me. Please help me with this. Thank you.



    enter image description here










    share|improve this question


























      6












      6








      6


      1






      I am new to LaTeX. I know how to write basic equations in LaTeX. However, the following equation seems to be too difficult for me. Please help me with this. Thank you.



      enter image description here










      share|improve this question
















      I am new to LaTeX. I know how to write basic equations in LaTeX. However, the following equation seems to be too difficult for me. Please help me with this. Thank you.



      enter image description here







      math-mode equations cases






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 24 at 15:58









      JouleV

      9,39322256




      9,39322256










      asked Mar 24 at 6:00









      Nahid HossainNahid Hossain

      513




      513




















          3 Answers
          3






          active

          oldest

          votes


















          10














          I'd not use the inner brace, but a standard notation for the minimum, just split across lines.



          documentclassarticle
          usepackageamsmath

          DeclareMathOperatorlevlev

          begindocument

          beginequation*
          lev_a,b(i,j)=
          begincases
          max(i,j) & textif $min(i,j)=0$, \[1ex]
          beginaligned[b]
          minbigl(lev_a,b&(i-1,j)+1, \
          lev_a,b&(i,j-1)+1, \
          lev_a,b&(i-1,j-1)+1_(a_ine b_j)
          bigr)
          endaligned & textotherwise.
          endcases
          endequation*

          enddocument


          enter image description here



          You might prefer the following realization, which is obtained by using beginaligned instead of beginaligned[b].



          enter image description here






          share|improve this answer























          • It works. Thank you.

            – Nahid Hossain
            Mar 25 at 13:27


















          9














          amsmath's cases is defined for this. The horizontal space between the bracket and the inside contents is very good.



          documentclassarticle
          usepackageamsmath
          begindocument
          [
          mathrmlev_a,b(i,j)=begincases
          max(i,j)&textif $min(i,j)=0$,\
          minbegincases
          mathrmlev_a,b(i-1,j)+1\
          mathrmlev_a,b(i,j-1)+1\
          mathrmlev_a,b(i-1,j-1)+1_(a_ine b_j)
          endcases &textotherwise.
          endcases
          ]
          enddocument


          enter image description here




          It seems to me that you are writing a document which uses lev() function quite often. In this case, you should define a new macro to avoid repetition (I use DeclareMathOperator, which is the best way for this, thanks to egreg's suggestion in his comment).



          documentclassarticle
          usepackageamsmath
          %newcommandlevmathrmlev: not good
          DeclareMathOperatorlevlev
          begindocument
          [
          lev_a,b(i,j)=begincases
          max(i,j)&textif $min(i,j)=0$,\
          minbegincases
          lev_a,b(i-1,j)+1\
          lev_a,b(i,j-1)+1\
          lev_a,b(i-1,j-1)+1_(a_ine b_j)
          endcases &textotherwise.
          endcases
          ]
          enddocument


          enter image description here






          share|improve this answer
































            2














            enter image description here



            If you use the function lev a lot then it is a good idea to define it as follows



            newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)



            Just type lev and you will get the function with two arguments to enter.



            documentclassarticle
            usepackageamsmath
            usepackagebooktabs
            usepackagearray

            begindocument

            newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)
            beginequation
            levij = leftlbrace
            beginarrayl l
            max(i, thinspace j) & textif~ min(i, thinspace j) =0,
            \
            min leftlbrace hspace-1mm
            beginarrayl
            levi-1j + 1
            \
            addlinespace[0.5mm]
            levij-1 + 1
            \
            addlinespace[0.5mm]
            levi-1j-1 + 1_(a_i neq b_j)
            endarray

            right. & textotherwise.
            endarray
            right.
            endequation

            enddocument





            share|improve this answer























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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              10














              I'd not use the inner brace, but a standard notation for the minimum, just split across lines.



              documentclassarticle
              usepackageamsmath

              DeclareMathOperatorlevlev

              begindocument

              beginequation*
              lev_a,b(i,j)=
              begincases
              max(i,j) & textif $min(i,j)=0$, \[1ex]
              beginaligned[b]
              minbigl(lev_a,b&(i-1,j)+1, \
              lev_a,b&(i,j-1)+1, \
              lev_a,b&(i-1,j-1)+1_(a_ine b_j)
              bigr)
              endaligned & textotherwise.
              endcases
              endequation*

              enddocument


              enter image description here



              You might prefer the following realization, which is obtained by using beginaligned instead of beginaligned[b].



              enter image description here






              share|improve this answer























              • It works. Thank you.

                – Nahid Hossain
                Mar 25 at 13:27















              10














              I'd not use the inner brace, but a standard notation for the minimum, just split across lines.



              documentclassarticle
              usepackageamsmath

              DeclareMathOperatorlevlev

              begindocument

              beginequation*
              lev_a,b(i,j)=
              begincases
              max(i,j) & textif $min(i,j)=0$, \[1ex]
              beginaligned[b]
              minbigl(lev_a,b&(i-1,j)+1, \
              lev_a,b&(i,j-1)+1, \
              lev_a,b&(i-1,j-1)+1_(a_ine b_j)
              bigr)
              endaligned & textotherwise.
              endcases
              endequation*

              enddocument


              enter image description here



              You might prefer the following realization, which is obtained by using beginaligned instead of beginaligned[b].



              enter image description here






              share|improve this answer























              • It works. Thank you.

                – Nahid Hossain
                Mar 25 at 13:27













              10












              10








              10







              I'd not use the inner brace, but a standard notation for the minimum, just split across lines.



              documentclassarticle
              usepackageamsmath

              DeclareMathOperatorlevlev

              begindocument

              beginequation*
              lev_a,b(i,j)=
              begincases
              max(i,j) & textif $min(i,j)=0$, \[1ex]
              beginaligned[b]
              minbigl(lev_a,b&(i-1,j)+1, \
              lev_a,b&(i,j-1)+1, \
              lev_a,b&(i-1,j-1)+1_(a_ine b_j)
              bigr)
              endaligned & textotherwise.
              endcases
              endequation*

              enddocument


              enter image description here



              You might prefer the following realization, which is obtained by using beginaligned instead of beginaligned[b].



              enter image description here






              share|improve this answer













              I'd not use the inner brace, but a standard notation for the minimum, just split across lines.



              documentclassarticle
              usepackageamsmath

              DeclareMathOperatorlevlev

              begindocument

              beginequation*
              lev_a,b(i,j)=
              begincases
              max(i,j) & textif $min(i,j)=0$, \[1ex]
              beginaligned[b]
              minbigl(lev_a,b&(i-1,j)+1, \
              lev_a,b&(i,j-1)+1, \
              lev_a,b&(i-1,j-1)+1_(a_ine b_j)
              bigr)
              endaligned & textotherwise.
              endcases
              endequation*

              enddocument


              enter image description here



              You might prefer the following realization, which is obtained by using beginaligned instead of beginaligned[b].



              enter image description here







              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered Mar 24 at 10:08









              egregegreg

              730k8819293242




              730k8819293242












              • It works. Thank you.

                – Nahid Hossain
                Mar 25 at 13:27

















              • It works. Thank you.

                – Nahid Hossain
                Mar 25 at 13:27
















              It works. Thank you.

              – Nahid Hossain
              Mar 25 at 13:27





              It works. Thank you.

              – Nahid Hossain
              Mar 25 at 13:27











              9














              amsmath's cases is defined for this. The horizontal space between the bracket and the inside contents is very good.



              documentclassarticle
              usepackageamsmath
              begindocument
              [
              mathrmlev_a,b(i,j)=begincases
              max(i,j)&textif $min(i,j)=0$,\
              minbegincases
              mathrmlev_a,b(i-1,j)+1\
              mathrmlev_a,b(i,j-1)+1\
              mathrmlev_a,b(i-1,j-1)+1_(a_ine b_j)
              endcases &textotherwise.
              endcases
              ]
              enddocument


              enter image description here




              It seems to me that you are writing a document which uses lev() function quite often. In this case, you should define a new macro to avoid repetition (I use DeclareMathOperator, which is the best way for this, thanks to egreg's suggestion in his comment).



              documentclassarticle
              usepackageamsmath
              %newcommandlevmathrmlev: not good
              DeclareMathOperatorlevlev
              begindocument
              [
              lev_a,b(i,j)=begincases
              max(i,j)&textif $min(i,j)=0$,\
              minbegincases
              lev_a,b(i-1,j)+1\
              lev_a,b(i,j-1)+1\
              lev_a,b(i-1,j-1)+1_(a_ine b_j)
              endcases &textotherwise.
              endcases
              ]
              enddocument


              enter image description here






              share|improve this answer





























                9














                amsmath's cases is defined for this. The horizontal space between the bracket and the inside contents is very good.



                documentclassarticle
                usepackageamsmath
                begindocument
                [
                mathrmlev_a,b(i,j)=begincases
                max(i,j)&textif $min(i,j)=0$,\
                minbegincases
                mathrmlev_a,b(i-1,j)+1\
                mathrmlev_a,b(i,j-1)+1\
                mathrmlev_a,b(i-1,j-1)+1_(a_ine b_j)
                endcases &textotherwise.
                endcases
                ]
                enddocument


                enter image description here




                It seems to me that you are writing a document which uses lev() function quite often. In this case, you should define a new macro to avoid repetition (I use DeclareMathOperator, which is the best way for this, thanks to egreg's suggestion in his comment).



                documentclassarticle
                usepackageamsmath
                %newcommandlevmathrmlev: not good
                DeclareMathOperatorlevlev
                begindocument
                [
                lev_a,b(i,j)=begincases
                max(i,j)&textif $min(i,j)=0$,\
                minbegincases
                lev_a,b(i-1,j)+1\
                lev_a,b(i,j-1)+1\
                lev_a,b(i-1,j-1)+1_(a_ine b_j)
                endcases &textotherwise.
                endcases
                ]
                enddocument


                enter image description here






                share|improve this answer



























                  9












                  9








                  9







                  amsmath's cases is defined for this. The horizontal space between the bracket and the inside contents is very good.



                  documentclassarticle
                  usepackageamsmath
                  begindocument
                  [
                  mathrmlev_a,b(i,j)=begincases
                  max(i,j)&textif $min(i,j)=0$,\
                  minbegincases
                  mathrmlev_a,b(i-1,j)+1\
                  mathrmlev_a,b(i,j-1)+1\
                  mathrmlev_a,b(i-1,j-1)+1_(a_ine b_j)
                  endcases &textotherwise.
                  endcases
                  ]
                  enddocument


                  enter image description here




                  It seems to me that you are writing a document which uses lev() function quite often. In this case, you should define a new macro to avoid repetition (I use DeclareMathOperator, which is the best way for this, thanks to egreg's suggestion in his comment).



                  documentclassarticle
                  usepackageamsmath
                  %newcommandlevmathrmlev: not good
                  DeclareMathOperatorlevlev
                  begindocument
                  [
                  lev_a,b(i,j)=begincases
                  max(i,j)&textif $min(i,j)=0$,\
                  minbegincases
                  lev_a,b(i-1,j)+1\
                  lev_a,b(i,j-1)+1\
                  lev_a,b(i-1,j-1)+1_(a_ine b_j)
                  endcases &textotherwise.
                  endcases
                  ]
                  enddocument


                  enter image description here






                  share|improve this answer















                  amsmath's cases is defined for this. The horizontal space between the bracket and the inside contents is very good.



                  documentclassarticle
                  usepackageamsmath
                  begindocument
                  [
                  mathrmlev_a,b(i,j)=begincases
                  max(i,j)&textif $min(i,j)=0$,\
                  minbegincases
                  mathrmlev_a,b(i-1,j)+1\
                  mathrmlev_a,b(i,j-1)+1\
                  mathrmlev_a,b(i-1,j-1)+1_(a_ine b_j)
                  endcases &textotherwise.
                  endcases
                  ]
                  enddocument


                  enter image description here




                  It seems to me that you are writing a document which uses lev() function quite often. In this case, you should define a new macro to avoid repetition (I use DeclareMathOperator, which is the best way for this, thanks to egreg's suggestion in his comment).



                  documentclassarticle
                  usepackageamsmath
                  %newcommandlevmathrmlev: not good
                  DeclareMathOperatorlevlev
                  begindocument
                  [
                  lev_a,b(i,j)=begincases
                  max(i,j)&textif $min(i,j)=0$,\
                  minbegincases
                  lev_a,b(i-1,j)+1\
                  lev_a,b(i,j-1)+1\
                  lev_a,b(i-1,j-1)+1_(a_ine b_j)
                  endcases &textotherwise.
                  endcases
                  ]
                  enddocument


                  enter image description here







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Mar 24 at 14:07

























                  answered Mar 24 at 6:09









                  JouleVJouleV

                  9,39322256




                  9,39322256





















                      2














                      enter image description here



                      If you use the function lev a lot then it is a good idea to define it as follows



                      newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)



                      Just type lev and you will get the function with two arguments to enter.



                      documentclassarticle
                      usepackageamsmath
                      usepackagebooktabs
                      usepackagearray

                      begindocument

                      newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)
                      beginequation
                      levij = leftlbrace
                      beginarrayl l
                      max(i, thinspace j) & textif~ min(i, thinspace j) =0,
                      \
                      min leftlbrace hspace-1mm
                      beginarrayl
                      levi-1j + 1
                      \
                      addlinespace[0.5mm]
                      levij-1 + 1
                      \
                      addlinespace[0.5mm]
                      levi-1j-1 + 1_(a_i neq b_j)
                      endarray

                      right. & textotherwise.
                      endarray
                      right.
                      endequation

                      enddocument





                      share|improve this answer



























                        2














                        enter image description here



                        If you use the function lev a lot then it is a good idea to define it as follows



                        newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)



                        Just type lev and you will get the function with two arguments to enter.



                        documentclassarticle
                        usepackageamsmath
                        usepackagebooktabs
                        usepackagearray

                        begindocument

                        newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)
                        beginequation
                        levij = leftlbrace
                        beginarrayl l
                        max(i, thinspace j) & textif~ min(i, thinspace j) =0,
                        \
                        min leftlbrace hspace-1mm
                        beginarrayl
                        levi-1j + 1
                        \
                        addlinespace[0.5mm]
                        levij-1 + 1
                        \
                        addlinespace[0.5mm]
                        levi-1j-1 + 1_(a_i neq b_j)
                        endarray

                        right. & textotherwise.
                        endarray
                        right.
                        endequation

                        enddocument





                        share|improve this answer

























                          2












                          2








                          2







                          enter image description here



                          If you use the function lev a lot then it is a good idea to define it as follows



                          newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)



                          Just type lev and you will get the function with two arguments to enter.



                          documentclassarticle
                          usepackageamsmath
                          usepackagebooktabs
                          usepackagearray

                          begindocument

                          newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)
                          beginequation
                          levij = leftlbrace
                          beginarrayl l
                          max(i, thinspace j) & textif~ min(i, thinspace j) =0,
                          \
                          min leftlbrace hspace-1mm
                          beginarrayl
                          levi-1j + 1
                          \
                          addlinespace[0.5mm]
                          levij-1 + 1
                          \
                          addlinespace[0.5mm]
                          levi-1j-1 + 1_(a_i neq b_j)
                          endarray

                          right. & textotherwise.
                          endarray
                          right.
                          endequation

                          enddocument





                          share|improve this answer













                          enter image description here



                          If you use the function lev a lot then it is a good idea to define it as follows



                          newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)



                          Just type lev and you will get the function with two arguments to enter.



                          documentclassarticle
                          usepackageamsmath
                          usepackagebooktabs
                          usepackagearray

                          begindocument

                          newcommandlev[2]mathrmlev_a, thinspace b (#1, thinspace #2)
                          beginequation
                          levij = leftlbrace
                          beginarrayl l
                          max(i, thinspace j) & textif~ min(i, thinspace j) =0,
                          \
                          min leftlbrace hspace-1mm
                          beginarrayl
                          levi-1j + 1
                          \
                          addlinespace[0.5mm]
                          levij-1 + 1
                          \
                          addlinespace[0.5mm]
                          levi-1j-1 + 1_(a_i neq b_j)
                          endarray

                          right. & textotherwise.
                          endarray
                          right.
                          endequation

                          enddocument






                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Mar 24 at 6:17









                          Al-Motasem AldaoudeyehAl-Motasem Aldaoudeyeh

                          1,869414




                          1,869414



























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