Update source/numerics.tex

Co-authored-by: timsong-cpp <[email protected]>

source/numerics.tex

@@ -12822,7 +12822,7 @@
 if the expression \tcode{conj(E)} is valid for any subexpression \tcode{E}
 whose type is \tcode{remove_cvref_t<ElementType>}
 with overload resolution performed in a context that includes the declaration
-\tcode{template<class U> conj(const U\&) = delete;};
+\tcode{template<class U> U conj(const U\&) = delete;};
 \item
 otherwise,
 \tcode{Accessor}.