Comment on Pixels per Inch formula: PPI=sqrt(Width^2+Height^2)/Diagonal. Your screen is obsolete.Comments−stevedekorte17yIn order for this to measure to be meaningfull, typical viewing distances need to be taken into account. A better measure would be pixels per degree (PPD).
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In order for this to measure to be meaningfull, typical viewing distances need to be taken into account. A better measure would be pixels per degree (PPD).