[complex.numbers] Use \xref for references to the C standard.

Author: jensmaurer

source/numerics.tex

@@ -991,7 +991,8 @@
 
 \pnum
 \remarks
-Behaves the same as the C function \tcode{cproj}, defined in 7.3.9.4.
+Behaves the same as the C function \tcode{cproj}.
+\xref ISO C 7.3.9.5
 \end{itemdescr}
 
 \indexlibrary{\idxcode{polar}!\idxcode{complex}}%
@@ -1027,8 +1028,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{cacos},
-defined in 7.3.5.1.
+Behaves the same as the C function \tcode{cacos}.
+\xref ISO C 7.3.5.1
 \end{itemdescr}
 
 \indexlibrary{\idxcode{asin}!\idxcode{complex}}%
@@ -1043,8 +1044,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{casin},
-defined in 7.3.5.2.
+Behaves the same as the C function \tcode{casin}.
+\xref ISO C 7.3.5.2
 \end{itemdescr}
 
 \indexlibrary{\idxcode{atan}!\idxcode{complex}}%
@@ -1059,8 +1060,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{catan},
-defined in 7.3.5.3.
+Behaves the same as the C function \tcode{catan}.
+\xref ISO C 7.3.5.3
 \end{itemdescr}
 
 \indexlibrary{\idxcode{acosh}!\idxcode{complex}}%
@@ -1075,8 +1076,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{cacosh},
-defined in 7.3.6.1.
+Behaves the same as the C function \tcode{cacosh}.
+\xref ISO C 7.3.6.1
 \end{itemdescr}
 
 \indexlibrary{\idxcode{asinh}!\idxcode{complex}}%
@@ -1091,8 +1092,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{casinh},
-defined in 7.3.6.2.
+Behaves the same as the C function \tcode{casinh}.
+\xref ISO C 7.3.6.2
 \end{itemdescr}
 
 \indexlibrary{\idxcode{atanh}!\idxcode{complex}}%
@@ -1107,8 +1108,8 @@
 
 \pnum
 \remarks
-Behaves the same as C function \tcode{catanh},
-defined in 7.3.6.3.
+Behaves the same as the C function \tcode{catanh}.
+\xref ISO C 7.3.6.3
 \end{itemdescr}
 
 \indexlibrary{\idxcode{cos}!\idxcode{complex}}%