{"id":78,"date":"2009-05-21T23:58:14","date_gmt":"2009-05-22T04:58:14","guid":{"rendered":"http:\/\/24.183.55.167:8101\/wordpress\/?p=78"},"modified":"2012-08-14T20:55:28","modified_gmt":"2012-08-15T01:55:28","slug":"wolframalphacom-a-fun-way-to-search-in-math","status":"publish","type":"post","link":"https:\/\/icesquare.com\/wordpress\/wolframalphacom-a-fun-way-to-search-in-math\/","title":{"rendered":"WolframAlpha.com &#8211; A fun way to search in math"},"content":{"rendered":"<p>Recently I found that Wolfram Research (The maker of Mathematica) released an online Math search engine. It is way much more powerful than the Google Calculator. It gives you not only the math result, but also a graphical expression on the result.<\/p>\n<p>Solving a math problem:<br \/>\nSuppose I want to find out the value of x, where sin(x)cos(x) = 0.5. Oh wow, I got the answer right the way!<br \/>\n<a href=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"81\" data-permalink=\"https:\/\/icesquare.com\/wordpress\/wolframalphacom-a-fun-way-to-search-in-math\/worlframalpha-sinxcosx\/#main\" data-orig-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx.jpg\" data-orig-size=\"574,473\" data-comments-opened=\"1\" data-image-title=\"worlframalpha-sinxcosx\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx.jpg\" class=\"aligncenter size-full wp-image-81\" title=\"worlframalpha-sinxcosx\" src=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx.jpg\" alt=\"worlframalpha-sinxcosx\" width=\"574\" height=\"473\" srcset=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx.jpg 574w, https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinxcosx-300x247.jpg 300w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/a><br \/>\n<a href=\"http:\/\/www31.wolframalpha.com\/input\/?i=sin+x+*+cos+x+%3D+0.5%2C+x\" target=\"_blank\">Try to find out the result of sin(x)cos(x) = 0.5 here<\/a><\/p>\n<p>Or let&#8217;s say I want to know the populations of California:<br \/>\n<a href=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"79\" data-permalink=\"https:\/\/icesquare.com\/wordpress\/wolframalphacom-a-fun-way-to-search-in-math\/worlframalpha-californiapopulations\/#main\" data-orig-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations.jpg\" data-orig-size=\"575,624\" data-comments-opened=\"1\" data-image-title=\"worlframalpha-californiapopulations\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations.jpg\" src=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations.jpg\" alt=\"worlframalpha-californiapopulations\" title=\"worlframalpha-californiapopulations\" width=\"575\" height=\"624\" class=\"aligncenter size-full wp-image-79\" srcset=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations.jpg 575w, https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-californiapopulations-276x300.jpg 276w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www31.wolframalpha.com\/input\/?i=california+populations\" target=\"_blank\">Try to find out the result of California population here<\/a><\/p>\n<p>Now something more interesting. I want to know what&#8217;s the result of sin(x)=2:<br \/>\n<a href=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"80\" data-permalink=\"https:\/\/icesquare.com\/wordpress\/wolframalphacom-a-fun-way-to-search-in-math\/worlframalpha-sinx2\/#main\" data-orig-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2.jpg\" data-orig-size=\"577,656\" data-comments-opened=\"1\" data-image-title=\"worlframalpha-sinx2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2.jpg\" src=\"\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2.jpg\" alt=\"worlframalpha-sinx2\" title=\"worlframalpha-sinx2\" width=\"577\" height=\"656\" class=\"aligncenter size-full wp-image-80\" srcset=\"https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2.jpg 577w, https:\/\/icesquare.com\/wordpress\/wp-content\/uploads\/2009\/05\/worlframalpha-sinx2-263x300.jpg 263w\" sizes=\"auto, (max-width: 577px) 100vw, 577px\" \/><\/a><br \/>\nI got the result in 2 seconds!!!! I still remember that I&#8217;ve spent over 2 hours to work on this problem back in freshman year. (See <a href=\"http:\/\/derrickcheng.com\/Project\/Others\/\" target=\"derrick\">My Presentation on Sin(x)=2<\/a>)<\/p>\n<p><a href=\"http:\/\/www31.wolframalpha.com\/input\/?i=sinx%3D2\" target=\"_blank\">Try to find out the result of sin x = 2 here<\/a><\/p>\n<p><a href=\"http:\/\/www.wolframalpha.com\/\" target=\"_blank\">Want to have more fun with Math? Try it yourself here!<\/a><\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently I found that Wolfram Research (The maker of Mathematica) released an online Math search engine. It is way much more powerful than the Google Calculator. It gives you not <a class=\"more-link\" href=\"https:\/\/icesquare.com\/wordpress\/wolframalphacom-a-fun-way-to-search-in-math\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[6],"tags":[21,22],"class_list":["post-78","post","type-post","status-publish","format-standard","hentry","category-technology","tag-math","tag-wolfram"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p1sqzr-1g","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":87,"url":"https:\/\/icesquare.com\/wordpress\/performance-benchmark-freebsd-vs-ubuntu-vs-os-x-which-one-is-better\/","url_meta":{"origin":78,"position":0},"title":"Performance Benchmark: FreeBSD vs Ubuntu vs OS X, which one is better?","author":"Derrick","date":"May 22, 2009","format":false,"excerpt":"If you cannot decide whether you should go with FreeBSD or Ubuntu (or Linux), check out this article: FreeBSD or Linux in 6 Simple Questions Recently I am working on building a web farm which is formed by three ancient time computers (The sum of their ages is older than\u2026","rel":"","context":"In &quot;FreeBSD&quot;","block_context":{"text":"FreeBSD","link":"https:\/\/icesquare.com\/wordpress\/category\/sever-problem\/freebsd\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":299,"url":"https:\/\/icesquare.com\/wordpress\/area-proportional-venn-diagram\/","url_meta":{"origin":78,"position":1},"title":"Area-Proportional Venn Diagram Tools","author":"Derrick","date":"September 30, 2009","format":false,"excerpt":"I was looking for tools to draw area-proportional Venn Diagram, but most of them either do not work in some cases or very difficult to use. Finally, I found a very very good one! A very very nice tool to draw Area-Proportional Venn Diagram: http:\/\/bioinforx.com\/free\/bxarrays\/venndiagram.php I can also edit the\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/"},"img":{"alt_text":"Area-Proportional Venn Diagram","src":"\/wordpress\/wp-content\/uploads\/2009\/09\/VennDiagram-300x243.png","width":350,"height":200},"classes":[]},{"id":3743,"url":"https:\/\/icesquare.com\/wordpress\/zfs-performance-mirror-vs-raidz-vs-raidz2-vs-raidz3-vs-striped\/","url_meta":{"origin":78,"position":2},"title":"ZFS Performance: Mirror VS RAIDZ VS RAIDZ2 vs RAIDZ3 vs Striped","author":"Derrick","date":"September 25, 2014","format":false,"excerpt":"I always wanted to find out the performance difference among different ZFS types, such as mirror, RAIDZ, RAIDZ2, RAIDZ3, Striped, two RAIDZ vdevs vs one RAIDZ2 vdev etc. So I decide to create an experiment to test these ZFS types. Before we talk about the test result, let's go over\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":552,"url":"https:\/\/icesquare.com\/wordpress\/solvedshared-object-libtokyocabinet-so-8-not-found\/","url_meta":{"origin":78,"position":3},"title":"[Solved]Shared object &#8220;libtokyocabinet.so.8&#8221; not found","author":"Derrick","date":"January 9, 2010","format":false,"excerpt":"After upgrading the Tokyo Cabinet on my FreeBSD 8 system, I could not start Tokyo Cabinet: ttserver \/libexec\/ld-elf.so.1: Shared object \"libtokyocabinet.so.8\" not found, required by \"ttserver\" After some investigations, I solved the problem. 1. First, go to the library directory. In my case, it is \/usr\/local\/lib. cd \/usr\/local\/lib 2. Display\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":917,"url":"https:\/\/icesquare.com\/wordpress\/what-can-you-do-with-a8m2n-la-nodusm-gl8e\/","url_meta":{"origin":78,"position":4},"title":"What can you do with A8M2N-LA \/ NodusM-GL8E?","author":"Derrick","date":"October 30, 2010","format":false,"excerpt":"Recently, I decided to turn my HP m7557c computer (motherboard: A8M2N-LA \/ NodusM-GL8E) to an Unix server. The nightmare began. After trying nearly 10 different operating systems and distributions, I found that only very few of them worked with A8M2N-LA \/ NodusM-GL8E. I think it is worth to share my\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":257,"url":"https:\/\/icesquare.com\/wordpress\/interviewing-a-software-engineer-developer-programmer\/","url_meta":{"origin":78,"position":5},"title":"Interviewing a software engineer \/ developer \/ programmer","author":"Derrick","date":"August 20, 2009","format":false,"excerpt":"I am going to have a face-to-face interview with a candidate of a PHP programmer position this afternoon. I was told to prepare some technical questions for the interview. If a candidate earns an face-to-face interview opportunity, that means his resume should have a very good match to the position\u2026","rel":"","context":"In &quot;Business&quot;","block_context":{"text":"Business","link":"https:\/\/icesquare.com\/wordpress\/category\/business\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/78","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/comments?post=78"}],"version-history":[{"count":12,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/78\/revisions"}],"predecessor-version":[{"id":2948,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/78\/revisions\/2948"}],"wp:attachment":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/media?parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/categories?post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/tags?post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}