$r2_lat
";
$r2 = sqrt((pow($r2_lat, 2)) + (pow($z, 2)));
$r22 = (sqrt(pow($r2_lat, 2) + pow($z, 2) - $r2_lat * $z * cos(deg2rad(90)) * 2));
echo "Latura r2 = $r2 ($r22)
";
$beta = $z / $r2_lat;
$beta = atan($beta);
echo "Unghiul Beta= ". rad2deg($beta) ."
";
// R1
$r1_lat = $p2 - $x;
echo "Latura adiacenta = ".abs($r1_lat)."
";
$r1 = sqrt((pow($r1_lat, 2)) + (pow($z, 2)));
$r11 = (sqrt(pow($r1_lat, 2) + pow($z, 2) - $r1_lat * $z * cos(deg2rad(90)) * 2));
echo "Latura r1 = $r1 ($r11)
";
$alfa = 50 / $r2;
$alfa = atan($alfa);
echo "Unghiul Alfa= ". rad2deg($alfa) ."
";
// R2'
$r2p_lat = abs($p4) + $x;
echo "Latura adiacenta = $r2p_lat
";
$r2p = sqrt((pow($r2p_lat, 2)) + (pow($z, 2)));
$r22p = (sqrt(pow($r2p_lat, 2) + pow($z, 2) - $r2p_lat * $z * cos(deg2rad(90)) * 2));
echo "Latura r2' = $r2p ($r22p)
";
$betap = $z / $r2p_lat;
$betap = atan($betap);
echo "Unghiul Beta'= ". rad2deg($betap) ."
";
// R1'
$r1p_lat = abs($p3) + $x;
echo "Latura adiacenta = ".abs($r1p_lat)."
";
$r1p = sqrt((pow($r1p_lat, 2)) + (pow($z, 2)));
$r11p = (sqrt(pow($r1p_lat, 2) + pow($z, 2) - $r1p_lat * $z * cos(deg2rad(90)) * 2));
echo "Latura r1' = $r1p ($r11p)
";
$alfap = 50 / $r2p;
$alfap = atan($alfap);
echo "Unghiul Alfa= ". rad2deg($alfap) ."
";
// TEST LATURA
$test = 70 / $r1;
$test = atan($test);
echo "Unghiul de test= ". rad2deg($test) ."
";
$arc = $alfa + $beta + $betap + $alfap + $test;
echo "Total: ".rad2deg($arc)."
";
?>