The normal at a vertex (0,1,2) on a surface is (0,4,5). the light source is (0,1,4). the diffuse colour of the light is 0.9,0,0.2). the diffuse co-efficients of the surface are (0.4,1,0). what will the rgb colour of the vertex be? assume there is no specular, emmisive or ambient component or light attenuation.

How do we use the sumif formula (when dealing with different formats) ?

How to apply the fly in effect to objects on a slide

Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?