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gmendezm

Sumatorias

Mar 24th, 2014
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Scheme 0.32 KB | None | 0 0
  1. (define (sumar-hasta-n n)
  2.  
  3.   (cond
  4.  
  5.     ((zero? n) 0)
  6.     (else
  7.      (+ n (sumar-hasta-n (- n 1)))
  8.     )
  9.    
  10.   )
  11.  
  12. )
  13.  
  14. (sumar-hasta-n 5)
  15.  
  16. (define (sumar-en-lista lista)
  17.   (cond
  18.     ((null? lista) 0)
  19.     (else
  20.      (+ (car lista) (sumar-en-lista (cdr lista)))
  21.     )
  22.  
  23.   )
  24.  
  25. )
  26.  
  27. (sumar-en-lista '(1))
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