.so macro
.he 'ATOF''ATOF'
.n  NAME
atof - ascii to floating point conversion
.sy SYNOPSIS
.nf
#include <math.h>

double
atof(s)
char *s;
.fi
.d  DESCRIPTION
\&'atof' converts an ascii string into it's floating point representation,
where the string is of the format :
.sp
.nf
.ti +5
{sign}{digits}{'.'}{digits}{E}{sign}{digits}
.fi
.sp
Both signs and the exponent string is optional.  The decimal point is
optional, but may appear at any point in the digit string.
The single precision result is returned.
.fl FILES
math.h - routine declaration
.sa SEE ALSO
etoa(subs), ftoa(subs), atol(subs)
.dg DIAGNOSTICS