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Merge pull request #780 from Richard-Yunchao/typo-in-chapter24

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Fix a small typo in chapter 24.6.1: Basic Line Segment Rasterization
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Jon Leech 2018-09-08 13:30:39 -07:00 committed by GitHub
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chapters/primsrast.txt
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@ -770,7 +770,7 @@ t = {{( \mathbf{p}_r - \mathbf{p}_a ) \cdot ( \mathbf{p}_b - \mathbf{p}_a )}
\over {\| \mathbf{p}_b - \mathbf{p}_a \|^2 }}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
(Note that [eq]#t = 0# at [eq]#**p**_a# and [eq]#t = 1# at [eq]#**p**~b~#.
(Note that [eq]#t = 0# at [eq]#**p**~a~# and [eq]#t = 1# at [eq]#**p**~b~#.
Also note that this calculation projects the vector from [eq]#**p**~a~# to
[eq]#**p**~r~# onto the line, and thus computes the normalized distance of
the fragment along the line.)