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Apple Computing Products:
macOS - Notebook Hardware
Difference between 15" and 17" screens (res)
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<blockquote data-quote="bobtomay" data-source="post: 783933" data-attributes="member: 24160"><p>The Math: and this is only approximate, not exact, didn't take any actual measurments.</p><p></p><p>16:9 screen (and yes I know our Mac's are 16:10), just makes it easier.</p><p></p><p>15" screen is 9" x 12" = 108 square inches </p><p>1440 x 900 = 1,296,000 pixels ÷ 108 = 12,000 pixels/SI</p><p> </p><p></p><p>17" screen is 10.2" x 13.6" = 138.7 SI</p><p>1920 x 1200 = 2,304,000 ÷ 138.7 = 16,611 pixels/SI</p><p></p><p>The 133 per inch Apple notes in their write up refers to pixels per inch (not per SI) - horizontally. 1920 ÷ 13.6 = 141; yes I know the math is off a little, but this is close enough for government work. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="bobtomay, post: 783933, member: 24160"] The Math: and this is only approximate, not exact, didn't take any actual measurments. 16:9 screen (and yes I know our Mac's are 16:10), just makes it easier. 15" screen is 9" x 12" = 108 square inches 1440 x 900 = 1,296,000 pixels ÷ 108 = 12,000 pixels/SI 17" screen is 10.2" x 13.6" = 138.7 SI 1920 x 1200 = 2,304,000 ÷ 138.7 = 16,611 pixels/SI The 133 per inch Apple notes in their write up refers to pixels per inch (not per SI) - horizontally. 1920 ÷ 13.6 = 141; yes I know the math is off a little, but this is close enough for government work. :) [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Difference between 15" and 17" screens (res)
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