File Coverage

lib/Spreadsheet/Engine/Function/ACOS.pm

Criterion	Covered	Total	%
statement	12	12	100.0
branch			n/a
condition			n/a
subroutine	5	5	100.0
pod	2	2	100.0
total	19	19	100.0

package Spreadsheet::Engine::Function::ACOS;

use strict;
use warnings;

use base 'Spreadsheet::Engine::Fn::math';

sub signature { [ '>=-1', '<=1' ] }

sub calculate {
  my ($self, $value) = @_;
  return atan2(sqrt(1 - $value * $value), $value);
}

1;

__END__