<![CDATA[RSS Feed]]>https://ecency.comhttps://ecency.com/logo512.pngRSS Feedhttps://ecency.comRSS for NodeMon, 07 Sep 2026 14:06:25 GMT<![CDATA[Exercise 2: Deriving the 1st Order and 3rd Order Optics Formulas]]>https://ecency.com/@mes/exercise-2-deriving-the-1st-order-and-3rd-order-optics-formulashttps://ecency.com/@mes/exercise-2-deriving-the-1st-order-and-3rd-order-optics-formulasSun, 08 Sep 2024 04:42:12 GMT