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Graphics Interchange Format  |  1996-01-10  |  7KB  |  413x649  |  1-bit (2 colors)

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OCR: (a) (x-xc) + (y - yc) 2 + (z-zc)2 = $,2 (b) to = -B-VBC. 2 -4AC 2A (c) -B+VB-4AC 2A where: A=x¿2 +yd2 +zd2 = t, B=2[xd(xp -Xc)+ya(o -Yc)+Za(20 -Zc)] C=(X0-Xc)2 +(Yo-yc)2 +(20-2c)2 -5,2 (d) N = Xp -Xc Yp -Yc Zp -Zc S,

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