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Xiaolin Wu's line algorithm: Difference between revisions
→{{header|REXX}}: added comment in header section regarding ''ipart'' versus ''floor''.
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=={{header|REXX}}==
This REXX example uses the Xiaolin Wu line algorithm to draw a line (with output).
<br>Apparently, there may be an error in the definition of the algorithm (which only manifests itself with negative numbers):
<br>use of the '''IPART''' function should probably be '''FLOOR'''.
<br>[See the ''talk'' section on the Xiaolin Wu's line algorithm.]
<br> http://en.wikipedia.org/wiki/Talk:Xiaolin_Wu%27s_line_algorithm
<lang rexx>/*REXX program plots/draws a line using the Xiaolin Wu line algorithm.*/
EoE = 1000 /*EOE = End Of Earth, er, plot. */
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