\begin{NiceTabular}{|wl{\ColOne}|wl{\ColTwo}|wl{\ColThree}|}\hline
%Line 1: Global title
\Block[c]{1-3}{\titleTable}&&\\\hline
%Line 2: Title of the three columns
\Block[c]{1-1}{Trigonometry} &
\Block[c]{1-1}{Matrices} &
\Block[c]{1-1}{More Trig.} \\\hline
%Line 3: The matrix area. The first and last column
% will have their content hidden to TeX
\Block[c]{\value{TFourMatrix}-1}{%
\deflength{\MathContentSize}{\ColOne-2\tabcolsep}%
\vspace{-\TFourPushTrig}%
\smash{\TFourTrigOne{\MathContentSize}}}&
\Block[c]{\value{TFourMatrix}-1}{%
\deflength{\MathContentSize}{\ColTwo-2\tabcolsep}%
\TFourMatrix{\MathContentSize}} &
\Block[c]{\value{TFourMatrix}-1}{%
\deflength{\MathContentSize}{\ColThree-1\tabcolsep}%
\vspace{-\TFourPushMoreTrig}
\smash{\TFourTrigTwo{\MathContentSize}}}\\
\AddBlankLines{\value{TFourMatrix}-2}{\TFourEmptyLine}\\\cline{2-2}
%Line 4: Title of the second columns
\Block[c]{1-1}{} &
\Block[c]{1-1}{Hyperbolic Functions} &
\Block[c]{1-1}{} \\\cline{2-2}
%Line 5: The hyperbolic functions area.
\Block[c]{\value{TFourHyperbolic}-1}{} &
\Block[c]{\value{TFourHyperbolic}-1}{%
\deflength{\MathContentSize}{\ColTwo-2\tabcolsep}%
\TFourHyperbolic{\MathContentSize}} &
\Block[c]{\value{TFourHyperbolic}-1}{} \\
\AddBlankLines{\value{TFourHyperbolic}-2}{\TFourEmptyLine}\\\cline{2-2}
%Line 6: The trigonometric table
\Block[c]{\value{TFourTrig}-1}{} &
\Block[c]{\value{TFourTrig}-1}{%
\deflength{\MathContentSize}{\ColTwo-2\tabcolsep}%
\TFourTrigTable{\MathContentSize}} &
\Block[c]{\value{TFourTrig}-1}{} \\
\AddBlankLines{\value{TFourTrig}-2}{\TFourEmptyLine}\\\hline
%Line 6: The quote and the copyright
\Block[c]{\value{TFourQuote}-1}{%
\deflength{\MathContentSize}{\ColOne-2\tabcolsep}%
\TFourVersion{\MathContentSize}} &
\Block[c]{\value{TFourQuote}-2}{%
\deflength{\MathContentSize}{\ColTwo+\ColThree-2\tabcolsep}%
\TFourQuoteOne{\MathContentSize}} &\\
\AddBlankLines{\value{TFourQuote}-2}{\TFourEmptyLine}\\\hline
\end{NiceTabular}
\endgroup
