Magic of numbers
Robert Tocquet describes also some of the virtually miraculous exploits of the famous prodigies of mental arithmetic, such as Inaudi, who could resolve mentally, in two or three minutes, problems which would take an experienced mathematician a fortnight to complete on paper, and Diamandi, who could multiply a fifteen-figure number by a four-figure number in his head and give the answer in thirty seconds. Calculating animals, too, are given their place, with descriptions of the incredible feats of the Elberfeld horses and Rolf the Mannhweim dog. How did they do it? Was it telepathy or training?
The reader is shown how, with a very little effort, they can learn to perform amazing tricks of mental arithmetic, how they can appear to have a fabulous memory, how they can 'foretell' the results of apparently random calculations - in fact, how to appreciate and use The Magic of Numbers.
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