{"id":64,"date":"2018-10-19T05:49:29","date_gmt":"2018-10-19T09:49:29","guid":{"rendered":"http:\/\/chfrank.net\/wordpress\/?p=64"},"modified":"2018-10-19T06:03:10","modified_gmt":"2018-10-19T10:03:10","slug":"hp-35s-pocket-calculator","status":"publish","type":"post","link":"https:\/\/chfrank.net\/wordpress\/2018\/10\/19\/hp-35s-pocket-calculator\/","title":{"rendered":"HP 35s Pocket Calculator"},"content":{"rendered":"<p>As part of my first calculus class we were told that we&#8217;d need a pocket calculator.<\/p>\n<p>Wait &#8211; can&#8217;t my phone do that?<\/p>\n<p>There&#8217;s something endearing nostalgic about the universities&#8217; insistence on a calculator, and they are in good company with my kids&#8217; school.<\/p>\n<p>My last calculator was an HP 16C, I used it during the first years of my professional life to do bit shift operations, and Hex\/Octal calculations; I still have it, alas, it does not have basic calculus functions, such as log(). Time for a new one!<\/p>\n<p>The HP16C uses RPN (Reverse Polish Notation) which makes for super fast and efficient calculations. HP seems to not make any RPN devices anymore, most likely because it&#8217;s not taught in school anymore and the customer base is aging out.<\/p>\n<p>Amazon to the rescue! A number of shops had the HP 35s (Model year 2015) in new and original condition for a very reasonable price, and one of them is now mine:<\/p>\n<p><a href=\"http:\/\/chfrank.net\/wordpress\/wp-content\/uploads\/2018\/10\/IMG_20181017_142829_544.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"display: inline; background-image: none;\" title=\"IMG_20181017_142829_544\" src=\"http:\/\/chfrank.net\/wordpress\/wp-content\/uploads\/2018\/10\/IMG_20181017_142829_544_thumb.jpg\" alt=\"IMG_20181017_142829_544\" width=\"299\" height=\"299\" border=\"0\" \/><\/a><\/p>\n<p>Monday we&#8217;ll have calculus again, can&#8217;t wait!<\/p>\n<p>&nbsp;<\/p>\n<p>Chris<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As part of my first calculus class we were told that we&#8217;d need a pocket calculator. Wait &#8211; can&#8217;t my phone do that? There&#8217;s something endearing nostalgic about the universities&#8217; insistence on a calculator, and they are in good company with my kids&#8217; school. My last calculator was an HP 16C, I used it during &hellip; <a href=\"https:\/\/chfrank.net\/wordpress\/2018\/10\/19\/hp-35s-pocket-calculator\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">HP 35s Pocket Calculator<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"webmentions_disabled_pings":false,"webmentions_disabled":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":3,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-64","post","type-post","status-publish","format-standard","hentry","category-university"],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/palXpA-12","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/posts\/64","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/comments?post=64"}],"version-history":[{"count":2,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/posts\/64\/revisions"}],"predecessor-version":[{"id":66,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/posts\/64\/revisions\/66"}],"wp:attachment":[{"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/media?parent=64"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/categories?post=64"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chfrank.net\/wordpress\/wp-json\/wp\/v2\/tags?post=64"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}