{"id":8355,"date":"2011-05-07T07:00:00","date_gmt":"2011-05-07T07:00:00","guid":{"rendered":"http:\/\/xmau.com\/wp\/notiziole\/2011\/05\/07\/ingenious_mathe\/"},"modified":"2011-05-07T07:00:00","modified_gmt":"2011-05-07T07:00:00","slug":"ingenious_mathe","status":"publish","type":"post","link":"https:\/\/xmau.com\/notiziole\/2011\/05\/07\/ingenious_mathe\/","title":{"rendered":"Ingenious Mathematical Problems and Methods<\/em> (libro)"},"content":{"rendered":"

\"[copertina]\" Occhei, questo libro non lo si trova se non nei circuiti alternativi, quindi questa mia recensione non \u00e8 che sia cosi utile, non ho difficolt\u00e0 ad ammetterlo. Per\u00f2 il testo (Lloyd A. Graham, Ingenious Mathematical Problems and Methods<\/em><\/a>, Dover Publications 1959, pag. 254, ISBN 978-0-486-20545-8) ha un certo interesse storico-matematico, perch\u00e9 mostra quali fossero i problemi ritenuti interessanti dall’\u00e9lite tecnica statunitense degli anni 1950 e vedere la differenza con quelli odierni. Innanzitutto l’ambientazione dei problemi \u00e8 molto pi\u00f9 vicina alla vita reale, tanto che spesso occorre modificare le condizioni iniziali teoriche dei problemi stessi per ottenere la “risposta reale”. La seconda peculiarit\u00e0 che ho notato \u00e8 il pesante ricorso ad analisi matematica e trigonometria (ma anche alla geometria sintetica, per dire…) per arrivare alle soluzioni. \u00c8 strano, perch\u00e9 altri libri di quel periodo (penso per esempio a Maurice Kraitchik<\/a>) erano pi\u00f9 di stile combinatorico. Vabb\u00e8, poi \u00e8 arrivato Martin Gardner :-)
\nIl libro contiene anche un gruppetto di “quickies”, pi\u00f9 simili ai problemi cui siamo abituati oggi, e una serie di nursery rhymes che a me non dicono proprio nulla, anche se alcune mi paiono parodie di filastrocche comuni inglesi.<\/p>\n","protected":false},"excerpt":{"rendered":"

I problemi matematici di cinquant’anni fa<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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