{"id":16417,"date":"2020-08-17T22:00:03","date_gmt":"2020-08-18T02:00:03","guid":{"rendered":"https:\/\/scruss.com\/blog\/?p=16417"},"modified":"2020-08-17T22:00:05","modified_gmt":"2020-08-18T02:00:05","slug":"calculator-for-engineering-nerds","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2020\/08\/17\/calculator-for-engineering-nerds\/","title":{"rendered":"calculator for engineering nerds"},"content":{"rendered":"\n<p>For something to do with my head, I&#8217;m taking the <a href=\"https:\/\/www.rac.ca\">RAC<\/a> Advanced Ham Radio course. The exam uses a non-programmable scientific calculator. I thought that all my calculators were programmable, but we found this one lurking in the basement and it&#8217;s just perfect:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"493\" height=\"1024\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2020\/07\/Casio_FX-115MS-493x1024.jpg\" alt=\"Casio fx-115MS scientific calculator\" class=\"wp-image-16418\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2020\/07\/Casio_FX-115MS-493x1024.jpg 493w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2020\/07\/Casio_FX-115MS-154x320.jpg 154w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2020\/07\/Casio_FX-115MS-77x160.jpg 77w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2020\/07\/Casio_FX-115MS.jpg 640w\" sizes=\"auto, (max-width: 493px) 100vw, 493px\" \/><figcaption>SI prefixes above 1\u00e2\u20ac\u00a69 on the fx-115MS: f, p, n \u00c2\u00b5, m, k, M, G, T<\/figcaption><\/figure><\/div>\n\n\n\n<p>This is one of the few calculators I&#8217;ve seen that both displays and takes inputs in SI units. How to put it into SI engineering display mode is explained in this delightful (archived) site <a href=\"https:\/\/web.archive.org\/web\/20200305103012\/http:\/\/faculty.ccc.edu\/jnadas\/graduate\/CASIO.fx115ms.HTM#modes\">Casio fx-115MS<\/a>.<\/p>\n\n\n\n<p>Entering numbers with SI prefixes is simple: type the number, then <em>Shift<\/em> and hit the prefix. So to enter 300000, you&#8217;d type <tt>300 Shift 4<\/tt> to get <tt>300 k<\/tt>.<\/p>\n\n\n\n<p>You do have to be a little careful reading the display in this mode, though. The display above reads 221 \u00c3\u2014 10<sup>-3<\/sup> (from the <strong>m<\/strong> at right), or 0.221.<\/p>\n\n\n\n<p>I don&#8217;t see any calculator in Casio&#8217;s current range that offers this handy feature. Guess I&#8217;m lucky I found it before the exam!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For something to do with my head, I&#8217;m taking the RAC Advanced Ham Radio course. The exam uses a non-programmable scientific calculator. I thought that all my calculators were programmable, but we found this one lurking in the basement and it&#8217;s just perfect: This is one of the few calculators I&#8217;ve seen that both displays [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"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}},"categories":[2290,7],"tags":[],"class_list":["post-16417","post","type-post","status-publish","format-standard","hentry","category-amateur-radio","category-computers-suck"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-4gN","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=16417"}],"version-history":[{"count":2,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16417\/revisions"}],"predecessor-version":[{"id":16438,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16417\/revisions\/16438"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=16417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=16417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=16417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}