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@@ -446,13 +446,13 @@ By default, \verb|$\mathscr{F}$| will produce $\mathscr{F}$.\\
$\bullet$ option {\tt uprightscript} changes the output to {\usefont{OML}{ntxmi}{m}{it}\char201}.\\
In both cases, there are full upper-case and lower-case and {\tt dotlessi}, {\tt dotlessj}. To insert the latter, you can write either \verb|$\mathscr{\imath}$| or \verb|$\imathscr$|, rendered as $\mathscr{\imath}$ in the slanted script case.
-The secondary letters font {\tt (lettersA)} and math family 2 {\tt(symbols)} have been rearranged. The first of these continues to have a Fraktur alphabet, but it a modification of its original one, having wider vertical stems and a blacker appearance more in keeping with the weight Times. {\tt Dotlessi} and {\tt dotlessj} have been added and can be specified in math mode by \verb|$\imathfrak$| and \verb|$\jmathfrak$|---\verb|$\mathfrak{\imath}$| also works. There are in addition two subsidiary Bbb alphabets in {\tt lettersA}, specified by the respective options {\tt vmathbb}, {\tt vvmathbb}, and there are corresponding {\tt dotlessi}, {\tt dotlessj} activated by \verb|$\imathbb$|, \verb|$\jmathbb$|, which always render as $\imathbb$, $\jmathbb$ mo matter the choice of which Blackboard Bold Alphabet. If you select one of the options {\tt vmathbb}, {\tt vvmathbb}, you will have Bbb digits 0..9 using, e.g., \verb|$\mathbb{1}$| to get~$\mathbb{1}$.
+The secondary letters font {\tt (lettersA)} and math family 2 {\tt(symbols)} have been rearranged. The first of these continues to have a Fraktur alphabet, but it a modification of its original one, having wider vertical stems and a blacker appearance more in keeping with the weight Times. {\tt Dotlessi} and {\tt dotlessj} have been added and can be specified in math mode by \verb|$\imathfrak$| and \verb|$\jmathfrak$|---\verb|$\mathfrak{\imath}$| also works. There are in addition two subsidiary Bbb alphabets in {\tt lettersA}, specified by the respective options {\tt vmathbb}, {\tt vvmathbb}, and there are corresponding {\tt dotlessi}, {\tt dotlessj} activated by \verb|$\imathbb$|, \verb|$\jmathbb$|, which always render as $\imathbb$, $\jmathbb$ no matter the choice of which Blackboard Bold Alphabet. If you select one of the options {\tt vmathbb}, {\tt vvmathbb}, you will have Bbb digits 0..9 using, e.g., \verb|$\mathbb{1}$| to get~$\varmathbb{1}$. (Without one of these options in force, \verb|$\mathbb{1}$| will render as~$\mathbb{1}$ because the default Bbb has no figure glyphs in the default slots.)
Among the new symbols added are:\\
$\bullet$ \verb|\hslash|, \verb|\hbar|, \verb|\lambdaslash|, \verb|\lambdabar|, \verb|\Zbar|, \verb|\Angstrom| are now constructed from the native glyphs.\\
$\bullet$ Euler's constant \verb|$\Euler$| ($\Euler$).\\
$\bullet$ Hermitian transpose \verb|\hermtransp| or \verb|\htransp| is used like \verb|$\mathbf{A}^{\htransp}$| ($\mathbf{A}^{\htransp}$). This usage is similar to simple transpose \verb|$\mathbf{A}^{\transp}$| ($\mathbf{A}^{\transp}$).\\
-$\bullet$ Independence can use \verb|\Perp|, $\Perp$, and there is a new \verb|\nPerp|, $\nPerp$ for the negation.
+$\bullet$ Independence can use \verb|\Perp|, $\Perp$, and there is a new \verb|\nPerp|, $\nPerp$, for its negation.
\subsection{Adaptive vector accent} The \LaTeX\ macro \verb|\overrightarrow| provides a right arrow with adaptive width, but not matching the vector head of {\tt newpxmath}. Likewise, the {\tt esvect} provides a similar service with a choice of vector heads, none of which match {\tt newpxmath}. I've added code to provide a matching adaptive vector accent and which uses the same macro name, \verb|\vv|, as {\tt esvect}.
For a comparison of these vector accents, \verb|$\vec{XY} \vv{XY} \overrightarrow{XY}$| renders as\\