Temp Control "Take Back Half" C Source?

Has anybody Embedded C-coded the EDN algorithm "Take Back Half"
Temperature Control by W. Stephen Woodward? I'd sure appreciate a
look-see.

http://www.edn.com/article/CA6255049.html?ref=nbra

Once you reach setpoint stability and the temperature drops, what do
you do with the power drive?

Thanks, Vernon Davis

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