19 const double PI= 3.1415926535897932384626433832795;
20 const double deg2rad = 0.01745329251994329576923690768488;
21 const double rad2deg = 57.2957795130823208767981548141052;
const double deg2rad
the value pi/180
const double rad2deg
the value 180/pi
int MAXLENFILENAME
maximal length of a file name
const double PI
the value of pi
double epsilon2
power or 2 of epsilon
double epsilon
default precision while comparing with Equal(..,..) functions. Initialized at 0.0000001.