不及格的程序员-八神

摘要： being retina display does not depend only on the ppi. it also depends on the viewing distance.using the formula a = 2tan-1(h/2d) at 15 inches（2.54厘米） away qualifies for a retina display.the eyes cannot discern the pixels at the distance, which is the essence of Retina Display.Retina 屏幕究竟是如何定义的？为何分辨率 阅读全文