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The laws of refraction
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A'pk algebraic analogous anteprime aperture apochromatic aspherical surfaces astigmatism axial curvatures calculated canonical coordinates chromatic aberration coefficients chromatic order cients circular coma coeffi coefficients of order component computing scheme consider convenient Cooke Triplet corresponding course curve defined diaphragm differentiation displacement effect entrance pupil equations equivalent variations exit pupil expansion expressions extra-axial curvatures factor follows function given higher derivatives higher-order image space intermediate coefficients intersection intrinsic coefficients intrinsic contributions latter linear monochromatic aberration multiplying notation nth-order obtained Optical Aberration paracanonical coordinates parameters paraxial aberration paraxial coefficients pencil polynomials primary aberration coefficients primary and secondary primary chromatic primary primary coefficients primary spherical aberration principal ray pseudo-expansion quantities ray tracing refractive indices relations respectively S'lpk secondary coefficients secondary spherical aberration skew rays subscript symbols Table tangential tertiary coefficients tion usual values variation of parameters write zero