@item @code{M_LN2q}: natural logarithm of 2
@item @code{M_LN10q}: natural logarithm of 10
@item @code{M_PIq}: pi
-@item @code{M_PI_2q}: two pi
-@item @code{M_PI_4q}: four pi
+@item @code{M_PI_2q}: pi divided by two
+@item @code{M_PI_4q}: pi divided by four
@item @code{M_1_PIq}: one over pi
@item @code{M_2_PIq}: one over two pi
@item @code{M_2_SQRTPIq}: two over square root of pi
@node strtoflt128
@section @code{strtoflt128} --- Convert from string
-The function @code{dmath_strtopQ} converts a string into a
+The function @code{strtoflt128} converts a string into a
@code{__float128} number.
@table @asis
@item @var{format} @tab conversion specifier string
@end multitable
+@item Note
+On some targets when supported by the C library hooks are installed
+for @code{printf} family of functions, so that @code{printf ("%Qe", 1.2Q);}
+etc.@: works too.
+
@item Example
@smallexample
#include <quadmath.h>
@end table
-On some targets when supported by the C library hooks are installed
-for @code{printf} family of functions, so that @code{printf ("%Qe", 1.2Q);}
-etc.@: works too.
-
@c ---------------------------------------------------------------------
@c GNU Free Documentation License