Fix \E_* to \E^* thinko/copy-pasto.

Remove one more \ccTexHtml as well.

Min_annulus_d/doc_tex/Bounding_volumes_ref/Min_annulus_d.tex

@@ -14,7 +14,7 @@
 
 An object of the class \ccRefName\ is the unique annulus (region between
 two concentric spheres with radii $r$ and $R$, $r \leq R$) enclosing a
-finite set of points in $d$-dimensional Euclidean space $\E_d$, where the
+finite set of points in $d$-dimensional Euclidean space $\E^d$, where the
 difference $R^2-r^2$ is minimal. For a point set $P$ we denote by $ma(P)$
 the smallest annulus that contains all points of $P$.  Note that $ma(P)$
 can be degenerate\lcTex{\ccIndexSubitem[t]{degeneracies}{\ccFont Min_annulus_d}},
@@ -236,7 +236,7 @@ two-, three-, and $d$-dimensional \cgal~kernel, respectively.
 The bounded area of the smallest enclosing annulus lies between the inner
 and the outer sphere. The boundary is the union of both spheres. By
 definition, an empty annulus has no boundary and no bounded side, i.e.~its
-unbounded side equals the whole space $\E_d$.
+unbounded side equals the whole space $\E^d$.
 
 \ccMemberFunction{ CGAL::Bounded_side
                    bounded_side( const Point& p) const;}{

Min_circle_2/doc_tex/Bounding_volumes_ref/MinCircle2Traits.tex

@@ -83,12 +83,12 @@ The following predicate is only needed, if the member function
 \ccDefinition
  
 An object of the class \ccClassName\ is a circle in two-dimensional
-Euclidean plane $\E_2$. Its boundary splits the plane into a bounded
+Euclidean plane $\E^2$. Its boundary splits the plane into a bounded
 and an unbounded side. By definition, an empty \ccClassName\ has no
 boundary and no bounded side, i.e.\ its unbounded side equals the
-whole plane $\E_2$. A \ccClassName\ containing exactly one point~$p$
+whole plane $\E^2$. A \ccClassName\ containing exactly one point~$p$
 has no bounded side, its boundary is $\{p\}$, and its unbounded side
-equals $\E_2\mbox{\ccTexHtml{$\setminus$}{-}}\{p\}$.
+equals $\E^2 \setminus \{p\}$.
 
 % -----------------------------------------------------------------------------
 \ccTypes

Min_circle_2/doc_tex/Bounding_volumes_ref/Min_circle_2.tex

@@ -15,7 +15,7 @@
 
 An object of the class \ccRefName\ is the unique circle of smallest area
 enclosing a finite (multi)set of points in two-dimensional Euclidean
-space~$\E_2$.  For a point set $P$ we denote by $mc(P)$ the smallest circle
+space~$\E^2$.  For a point set $P$ we denote by $mc(P)$ the smallest circle
 that contains all points of $P$. Note that $mc(P)$ can be
 degenerate\lcTex{\ccIndexSubitem[t]{degeneracies}{\ccFont Min_circle_2}},
 i.e.~$mc(P)=\emptyset$ if
@@ -173,7 +173,7 @@ $S$ of $P$.
 \ccIndexMemberFunctionGroup{predicates}
 
 By definition, an empty \ccClassTemplateName\ has no boundary and no
-bounded side, i.e.\ its unbounded side equals the whole space $\E_2$.
+bounded side, i.e.\ its unbounded side equals the whole space $\E^2$.
 
 \ccMemberFunction{ CGAL::Bounded_side
                    bounded_side( const Point& p) const;}{

Min_ellipse_2/doc_tex/Bounding_volumes_ref/MinEllipse2Traits.tex

@@ -62,10 +62,10 @@ Only default and copy constructor are required.
 \ccDefinition
  
 An object of the class \ccClassName\ is an ellipse in two-dimensional
-Euclidean plane $\E_2$. Its boundary splits the plane into a bounded
+Euclidean plane $\E^2$. Its boundary splits the plane into a bounded
 and an unbounded side. By definition, an empty \ccClassName\ has no
 boundary and no bounded side, i.e.\ its unbounded side equals the
-whole plane $\E_2$.
+whole plane $\E^2$.
 
 % -----------------------------------------------------------------------------
 \ccTypes

Min_ellipse_2/doc_tex/Bounding_volumes_ref/Min_ellipse_2.tex

@@ -14,7 +14,7 @@
 
 An object of the class \ccRefName\ is the unique ellipse of smallest area
 enclosing a finite (multi)set of points in two-dimensional euclidean
-space~$\E_2$.  For a point set $P$ we denote by $me(P)$ the smallest
+space~$\E^2$.  For a point set $P$ we denote by $me(P)$ the smallest
 ellipse that contains all points of $P$. Note that $me(P)$ can be
 degenerate\lcTex{\ccIndexSubitem[t]{degeneracies}{\ccFont Min_ellipse_2}},
 i.e.~$me(P)=\emptyset$ if
@@ -184,7 +184,7 @@ reconstructing $me(P)$ from a given support set\lcTex{\ccIndexSubitem[t]{support
 \ccIndexMemberFunctionGroup{predicates}
 
 By definition, an empty \ccRefName\ has no boundary and no bounded side,
-i.e.\ its unbounded side equals the whole space $\E_2$.
+i.e.\ its unbounded side equals the whole space $\E^2$.
 
 \ccMemberFunction{ CGAL::Bounded_side
                    bounded_side( const Point& p) const;}{

Min_ellipse_2/doc_tex/Bounding_volumes_ref/Min_ellipse_2_traits.tex

@@ -62,10 +62,10 @@ Only default and copy constructor are required.
 \ccDefinition
  
 An object of the class \ccClassName\ is an ellipse in two-dimensional
-Euclidean plane $\E_2$. Its boundary splits the plane into a bounded
+Euclidean plane $\E^2$. Its boundary splits the plane into a bounded
 and an unbounded side. By definition, an empty \ccClassName\ has no
 boundary and no bounded side, i.e.\ its unbounded side equals the
-whole plane $\E_2$.
+whole plane $\E^2$.
 
 % -----------------------------------------------------------------------------
 \ccTypes

Min_sphere_d/doc_tex/Bounding_volumes_ref/Min_sphere_d.tex

@@ -12,7 +12,7 @@
 
 An object of the class \ccRefName\ is the unique sphere of
 smallest volume enclosing a finite (multi)set of points in $d$-dimensional
-Euclidean space $\E_d$. For a set $P$ we denote by $ms(P)$ the
+Euclidean space $\E^d$. For a set $P$ we denote by $ms(P)$ the
 smallest sphere that contains all points of $P$. $ms(P)$ can
 be degenerate, i.e.\ $ms(P)=\emptyset$
 if $P=\emptyset$ and $ms(P)=\{p\}$ if
@@ -162,7 +162,7 @@ divide.
 \ccIndexMemberFunctionGroup{predicates}
 
 By definition, an empty \ccRefName\ has no boundary and no
-bounded side, i.e.\ its unbounded side equals the whole space $\E_d$.
+bounded side, i.e.\ its unbounded side equals the whole space $\E^d$.
 
 \ccMemberFunction{ Bounded_side
                    bounded_side( const Point& p) const;}{

Min_sphere_of_spheres_d/doc_tex/Bounding_volumes_ref/Min_sphere_of_spheres_d.tex

@@ -10,7 +10,7 @@
 
 An object of the class \ccRefName\ is a data structure that represents
 the unique sphere of smallest volume enclosing a finite set of spheres
-in $d$-dimensional Euclidean space $\E_d$.  For a set $S$ of spheres
+in $d$-dimensional Euclidean space $\E^d$.  For a set $S$ of spheres
 we denote by $ms(S)$ the smallest sphere that contains all spheres of
 $S$; we call $ms(S)$ the \emph{minsphere} of $S$. $ms(S)$ can be
 degenerate, i.e., $ms(S)=\emptyset$,

Polytope_distance_d/doc_tex/Polytope_distance_d_ref/Polytope_distance_d.tex

@@ -16,7 +16,7 @@
 
 An object of the class \ccRefName\ represents the (squared) distance
 between two convex polytopes, given as the convex hulls of two finite point
-sets in $d$-dimensional Euclidean space $\E_d$. For point sets $P$ and $Q$
+sets in $d$-dimensional Euclidean space $\E^d$. For point sets $P$ and $Q$
 we denote by $pd(P,Q)$ the distance between the convex hulls of $P$ and
 $Q$. Note that $pd(P,Q)$ can be
 degenerate\lcTex{\ccIndexSubitem[t]{degeneracies}{\ccFont Polytope_distance_d}},