.RE
.ad
.SH DESCRIPTION
-The
-.BR modf ()
-function breaks the argument
+These functions break the argument
.I x
into an integral
part and a fractional part, each of which has the same sign as
The integral part is stored in the location pointed to by
.IR iptr .
.SH RETURN VALUE
-The
-.BR modf ()
-function returns the fractional part of
+These functions return the fractional part of
.IR x .
If