Cleayn

Dy cadjin, sheuillineddyrplaaney ogheraghas plaaney elley nyessylysleeideilagh ehcleayn.Ta'njeeigey essylaghfocklit myr yn uillin ta jeant ec essylys y phlanaid as linney ta gientit trooid çheshvean y phlanaid as eh jeeraghan rish y phlaaney essylagh.

Co-earroo

Aynsdynamickyn rollageagh,foddee yncleayn$i\,$dy ve co-earrooit myr shoh:

$i=\arccos {h_{\mathrm {z} } \over \left|\mathbf {h} \right|}\,$

raad dy vel:

• $h_{\mathrm {z} }\,$ny z-cho-olt jeh$\mathbf {h} \,$,
• $\mathbf {h} \,$nyvaghtoor momentum cruinlaghta jeeraghyn rish yphlaaney essylagh.