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MasWag

tetens.el

May 11th, 2015
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  1. ;; Tetens's formula
  2. (defun E (T)
  3. (* 6.11
  4. (expt 10
  5. (/ (* T 7.5)
  6. (+ T 237.3)))))
  7.  
  8. (defun invE (e)
  9. (let ((a (/ (log10 (/ e 6.11)) 7.5)))
  10. (/ (* a 237.3) (- 1 a))))
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