Zipf´s law and entropy (Corresp.)

The estimate of the entropy of a language by assuming that the word probabilities follow Zipf´s law is discussed briefly. Previous numerical results [3] on the vocabulary size implied by Zipf´s law and entropy per word are corrected. The vocabulary size should be 12 366 words (not 8727 words) and the entropy per word 9.27 bits (not 11.82).