[qty.sym.expr] Avoid "expression template"

docs/api_reference/src/quantities.tex

@@ -955,7 +955,7 @@
 \pnum
 The concept \exposconcept{SymbolicConstant}
 is used to constrain the types
-that are used in the expression templates.
+that are used in symbolic expressions.
 
 \rSec3[qty.sym.expr.types]{Types}
 
@@ -1064,7 +1064,7 @@
 \end{codeblock}
 
 \pnum
-\exposid{expr-fractions} divides an expression template to numerator and denominator parts.
+\exposid{expr-fractions} divides a symbolic expression to numerator and denominator parts.
 Let \tcode{EF} be a specialization of \exposid{expr-fractions}.
 \begin{itemize}
 \item
@@ -1087,7 +1087,7 @@
 \end{itemize}
 
 \pnum
-The expression template algorithms perform symbolic computations.
+The symbolic expression algorithms perform operations on symbolic constants.
 A symbolic constant is a type that is a model of \exposconcept{SymbolicConstant}.
 \begin{example}
 The dimension \tcode{dim_length}, the quantity \tcode{time}, and the unit \tcode{one} are symbolic constants.
@@ -1243,7 +1243,7 @@
 \end{itemdescr}
 
 \pnum
-\exposid{expr-map} maps contents of one expression template to another resulting in a different type list.
+\exposid{expr-map} maps contents of one symbolic expression to another resulting in a different type list.
 
 \indexlibraryglobalexpos{expr-map}
 \begin{itemdecl}