Btukfyl

I have used multicolumn and tabularx for the table I intend to write in LaTex. But the resultant table is going out of the page width. I also added the textwidth in tabularx but it is not working as desired. Surely, I have did some mistake but cant figure out. Would be glad to have the correction. Thank you

begin{table}

centering

caption{my table}

label{mytable}

begin{tabularx}{textwidth}{|c|c|c|c|X|c|X|} 

hline

multicolumn{1}{|l|}{Type} & multicolumn{1}{l|}{Product name} & multicolumn{1}{l|}{begin{tabular}[c]{@{}l@{}}Diameter\(mm)end{tabular}} & multicolumn{1}{l|}{begin{tabular}[c]{@{}l@{}}Tensile strength\(MPa)end{tabular}} & multicolumn{1}{l|}{begin{tabular}[c]{@{}l@{}}Young's modulus\(GPa)end{tabular}} & multicolumn{1}{l|}{begin{tabular}[c]{@{}l@{}}Elongation\(%)end{tabular}} & Application \ 

hline

multirow{5}{*}{begin{tabular}[c]{@{}c@{}}class A\~\~\~\ end{tabular}} & abc123 & 0.014 & 1500 & 36 & 7 & four words text here  \ 

cline{2-7} & abc123 & 0.040 & 1400 & 36 & 6.5 & four words text here\ 

cline{2-7} & abc123 & 0.20 & 975 & 27 & 9 & four words text here \ 

cline{2-7} & abc123 & 0.31 & 975 & 26 & 6 & four words text here \ 

cline{2-7} & abc123 & 0.67 & 900 & 23 & 9 & four words text here \ hline

multicolumn{1}{|l|}{multirow{3}{*}{class B}} & abc123 & 0.027 & 1560 & 39 & 6.5 & four words text here  \ 

cline{2-7} multicolumn{1}{|l|}{} & abc123 & 0.040 & 1600 & 41 & 6.5 & four words text here \ 

cline{2-7} multicolumn{1}{|l|}{} & abc123 & 0.10 & 1200 & 28 & 12.5 & four words text here \

hline

end{tabularx}

end{table}

Also, the merged column text of the first column, I want it to set the vertical alignment to center instead of top.

The reason the tabularx environment's width exceeds the width of the textblock is that you're not allowing line breaks in the header cells. I suggest that you (a) radically simplify the header material, mostly by getting rid of the multicolumn "wrappers", and (b) use a centered version of the X column type for all six data columns. Optionally, consider using a separate row in the header to place the information about the units of measurement.

documentclass{article}

usepackage{tabularx}  % for "tabularx" environment and "X" column type

usepackage{ragged2e}  % for "Centering" macro

newcolumntype{C}{>{Centeringarraybackslashhspace{0pt}}X}

%% "hspace{0pt}" allows for hyphenation of first word in header cells



begin{document}



begin{table}

%%centering % not needed

caption{My table}

label{tab:mytable}

setlengthextrarowheight{2pt} % for a slightly more open "look"

setlengthtabcolsep{3pt}      % default: 6pt



begin{tabularx}{textwidth}{|l|*{6}{C|}} 

hline

Type & Product name & Diameter & Tensile strength 

     & Young's modulus & Elongation & Application \ 

& & (mm) & (MPa) & (GPa) & (%) & \ % place units of measurement on a separate row

hline

Class A  & abc123 & 0.014 & 1500 & 36 & 7   & four words text here \ cline{2-7} 

         & abc123 & 0.040 & 1400 & 36 & 6.5 & four words text here \ cline{2-7} 

         & abc123 & 0.20  &  975 & 27 & 9   & four words text here \ cline{2-7} 

         & abc123 & 0.31  &  975 & 26 & 6   & four words text here \ cline{2-7} 

         & abc123 & 0.67  &  900 & 23 & 9   & four words text here \ 

hline

Class B  & abc123 & 0.027 & 1560 & 39 & 6.5 & four words text here \ cline{2-7}  

         & abc123 & 0.040 & 1600 & 41 & 6.5 & four words text here \ cline{2-7}  

         & abc123 & 0.10  & 1200 & 28 & 12.5& four words text here \

hline

end{tabularx}

end{table}



end{document}

Addendum: If this were my table, I'd strive to give it a far more open and "inviting" look. I'd do so mainly by (a) getting rid of all vertical rules and (b) using fewer, but well-spaced, horizontal rules. The booktabs package, and its macros toprule, midrule, and bottomrule, are made for just this use case.

documentclass{article}

usepackage{tabularx,ragged2e,siunitx,booktabs}

newcolumntype{C}{>{Centeringarraybackslashhspace{0pt}}X}



begin{document}

begin{table}

caption{Second try}

label{tab:secondtry}

setlengthtabcolsep{4pt}      % default: 6pt



begin{tabularx}{textwidth}{@{} l *{6}{C} @{}} 

toprule

Type & Product name & Diameter & Tensile strength 

     & Young's modulus & Elongation & Application \ 

& & (si{millimeter}) & (si{megapascal}) & (si{gigapascal}) & (%) & \

midrule

Class A  & abc123 & 0.014 & 1500 & 36 & 7   & four words text here \ addlinespace 

         & abc123 & 0.040 & 1400 & 36 & 6.5 & four words text here \ addlinespace 

         & abc123 & 0.20  &  975 & 27 & 9   & four words text here \ addlinespace 

         & abc123 & 0.31  &  975 & 26 & 6   & four words text here \ addlinespace 

         & abc123 & 0.67  &  900 & 23 & 9   & four words text here \ 

midrule

Class B  & abc123 & 0.027 & 1560 & 39 & 6.5 & four words text here \ addlinespace  

         & abc123 & 0.040 & 1600 & 41 & 6.5 & four words text here \ addlinespace  

         & abc123 & 0.10  & 1200 & 28 & 12.5& four words text here \

bottomrule

end{tabularx}

end{table}



end{document}