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Caution Fill in all input cells. Choose all parameters unit. z is algebraic. R is infinite (if plane) or algebraic or "infinite". Enter "infinite" for a plane surface. Other input parameters are positive. Positive direction is according to the sense of the horizontal arrow provided for this purpose.
n0 and n1 can be either numeric values (larger than or equal to 1) or references of glasses from the catalog. If references of glasses are selected, the calculation considers the refraction indexes of these glasses at the wavelength lam defined in the current page.
