{"id":1939,"date":"2021-03-09T15:01:47","date_gmt":"2021-03-09T14:01:47","guid":{"rendered":"http:\/\/xmau.com\/wp\/ilpost\/?p=1939"},"modified":"2021-03-09T15:01:47","modified_gmt":"2021-03-09T14:01:47","slug":"pillole-ancora-sui-problemi-matematici-improbabili","status":"publish","type":"post","link":"https:\/\/xmau.com\/ilpost\/2021\/03\/09\/pillole-ancora-sui-problemi-matematici-improbabili\/","title":{"rendered":"[PILLOLE] Ancora sui problemi matematici improbabili"},"content":{"rendered":"<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1940\" data-permalink=\"https:\/\/xmau.com\/ilpost\/2021\/03\/09\/pillole-ancora-sui-problemi-matematici-improbabili\/marmellata\/\" data-orig-file=\"https:\/\/i0.wp.com\/xmau.com\/ilpost\/wp-content\/uploads\/sites\/5\/2021\/03\/marmellata.jpg?fit=623%2C144&amp;ssl=1\" data-orig-size=\"623,144\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"marmellata\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/xmau.com\/ilpost\/wp-content\/uploads\/sites\/5\/2021\/03\/marmellata.jpg?fit=600%2C139&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/xmau.com\/wp\/ilpost\/wp-content\/uploads\/sites\/4\/2021\/03\/marmellata.jpg?resize=623%2C144\" alt=\"\" width=\"623\" height=\"144\" class=\"aligncenter size-full wp-image-1940\" srcset=\"https:\/\/i0.wp.com\/xmau.com\/ilpost\/wp-content\/uploads\/sites\/5\/2021\/03\/marmellata.jpg?w=623&amp;ssl=1 623w, https:\/\/i0.wp.com\/xmau.com\/ilpost\/wp-content\/uploads\/sites\/5\/2021\/03\/marmellata.jpg?resize=300%2C69&amp;ssl=1 300w\" sizes=\"auto, (max-width: 623px) 100vw, 623px\" \/> Un aggiornamento al mio <a href=\"https:\/\/xmau.com\/wp\/ilpost\/2021\/02\/22\/giardini-bonsai\/\">post sui giardini bonsai<\/a>. Antonio Bachis mi ha <a href=\"https:\/\/twitter.com\/AntonioBachis\/status\/1369140080938528768\">segnalato su Twitter<\/a> il problema che vedete qui in cima. <\/p>\n<p>Chiunque abbia avuto una nonna che preparasse i barattoli di marmellata sa perfettamente che 60 vasetti sono una quantit\u00e0 assolutamente normale; che per fare la marmellata spenda 37 euro al barattolo mi pare invece piuttosto improbabile. Anche in questo caso insomma abbiamo un problema matematico teoricamente basato sulla vita reale ma che in pratica non lo \u00e8, con lo svantaggio aggiuntivo che stavolta si parla di soldi&#8230; o forse questo \u00e8 in realt\u00e0 un vantaggio, perch\u00e9 c&#8217;\u00e8 qualche speranza in pi\u00f9 che lo studente si accorga che forse quei barattoli non sono placcati oro!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un altro esempio di problema matematico con numeri non credibili<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-1939","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/phh2yP-vh","jetpack-related-posts":[{"id":2640,"url":"https:\/\/xmau.com\/ilpost\/2013\/09\/25\/matematica-e-liberta\/","url_meta":{"origin":1939,"position":0},"title":"Matematica e libert\u00e0","author":".mau.","date":"25\/09\/2013","format":false,"excerpt":"Non ho certo le capacit\u00e0 di interloquire con il papa emerito sui temi teologici, ma forse su quelli pi\u00f9 prettamente matematici qualcosa posso dire.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2450,"url":"https:\/\/xmau.com\/ilpost\/2011\/09\/16\/esercizi-o-problemi\/","url_meta":{"origin":1939,"position":1},"title":"Esercizi o problemi?","author":".mau.","date":"16\/09\/2011","format":false,"excerpt":"Sappiamo che non esiste una via regia per la matematica, e che bisogna mettersi a faticare per ottenere dei risultati. Ma c'\u00e8 modo e modo di faticare: svolgere esercizi o risolvere problemi sono due attivit\u00e0 ben diverse.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1424,"url":"https:\/\/xmau.com\/ilpost\/2019\/01\/07\/dal-latinorum-al-maticsipsilon\/","url_meta":{"origin":1939,"position":2},"title":"Dal latinorum al maticsipsilon","author":".mau.","date":"07\/01\/2019","format":false,"excerpt":"Con i secoli, il modo per camuffarsi dietro un discorso apparentemente sensato ma in realt\u00e0 fallace \u00e8 cambiato.","rel":"","context":"In \"offuscamento\"","block_context":{"text":"offuscamento","link":"https:\/\/xmau.com\/ilpost\/tag\/offuscamento\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":596,"url":"https:\/\/xmau.com\/ilpost\/2015\/07\/08\/russi-e-americani\/","url_meta":{"origin":1939,"position":3},"title":"Russi e americani","author":".mau.","date":"08\/07\/2015","format":false,"excerpt":"Un quizzino dove occorre usare il cervello e non la memoria","rel":"","context":"In \"quizzini\"","block_context":{"text":"quizzini","link":"https:\/\/xmau.com\/ilpost\/tag\/quizzini\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2580,"url":"https:\/\/xmau.com\/ilpost\/2013\/03\/27\/ricondursi-al-caso-precedente\/","url_meta":{"origin":1939,"position":4},"title":"Ricondursi al caso precedente","author":".mau.","date":"27\/03\/2013","format":false,"excerpt":"Quella del titolo \u00e8 una frase tipica da matematico e fa spesso divertire chi matematico non \u00e8, per\u00f2 \u00e8 uno strumento molto potente quando lo si sa usare.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":631,"url":"https:\/\/xmau.com\/ilpost\/2015\/10\/08\/sassi-dal-cavalcavia\/","url_meta":{"origin":1939,"position":5},"title":"Sassi dal cavalcavia","author":".mau.","date":"08\/10\/2015","format":false,"excerpt":"I problemi di un libro possono istigare a compiere delitti?","rel":"","context":"In \"didattica\"","block_context":{"text":"didattica","link":"https:\/\/xmau.com\/ilpost\/tag\/didattica\/"},"img":{"alt_text":"Esercizi troppo realistici (foto di Luigi De Rocchi)","src":"https:\/\/i0.wp.com\/xmau.com\/wp\/ilpost\/wp-content\/uploads\/sites\/4\/2015\/10\/sasso-300x169.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/posts\/1939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/comments?post=1939"}],"version-history":[{"count":2,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/posts\/1939\/revisions"}],"predecessor-version":[{"id":1942,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/posts\/1939\/revisions\/1942"}],"wp:attachment":[{"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/media?parent=1939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/categories?post=1939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xmau.com\/ilpost\/wp-json\/wp\/v2\/tags?post=1939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}