Three methods for simplifying the solution of the equations used in meridional refractometry are outlined: solution by time-sharing, multiple-access digital computers; solution by special-purpose analogue computer; and solution by nomogram. The advantages and the disadvantages of each method are discussed. It is suggested that a special-purpose analogue computer is the most feasible data reduction device for meridional refractometry.
Brubaker RF, Reinecke RD, Newman JS. Meridional Refractometry: II. Data Reduction. Arch Ophthalmol. 1970;83(5):570–573. doi:10.1001/archopht.1970.00990030570007
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