Math::FresnelZone 0.03

SYNOPSIS

use Math::FresnelZone;
use Math::FresnelZone qw(fresnel fresnelMi fresnelKm);

The arguments are:

0 - distance in kilometers or miles (default is 1),
1 - frequency in GHz (defualt 2.4),
2 - set to true to specify that the distance you are inputting is in miles and that the results should be in in feet (default is 0 - IE kilometers/meters)
fresnel()

my $fresnel_zone_radius_in_meters = fresnel(); # fresnel zone radius in meters for 1 kilometer at 2.4 GHz

my $fzr_in_meters = fresnel(5); # fresnel zone radius in meters for 5 kilometers at 2.4 GHz

my $fzr_in_meters = fresnel(5,4.8); # fresnel zone radius in meters for 5 kilometers at 4.8 GHz

my $fzr_in_feet = fresnel(3,9.6,1); # fresnel zone in feet for 3 miles at 9.6 GHz

If you are inputting Kilometers the result is in meters (these 3 calls have identical results):

fresnel($Km,$GHz);
fresnelKm($Km,$GHz); # see documentaion below for info about fresnelKm()
fresnel($Km,$GHz,0);

If you are inputting Miles (by specifying a true value as the 3rd argument) the result is in feet (these 2 calls have identical results)

fresnel($Mi,$GHz,1);
fresnelMi($Mi,$GHz); # see documentaion below for info about fresnelMi()

fresnelKm()

You can use this to make it easier to avoid ambiguity if are working in kilometers/meters. It takes the first two arguments only: distance in kilometers and frequency in GigaHertz

my $fzr_in_meters = fresnelKm($Km,$GHz);

fresnelMi()

You can use this to make it easier to avoid ambiguity if are working in miles/feet. It takes the first two arguments only: distance in miles and frequency in GigaHertz

my $fzr_in_feet = fresnelMi($Mi,$GHz);