{"id":9758,"date":"2026-10-13T03:20:25","date_gmt":"2026-10-12T19:20:25","guid":{"rendered":"http:\/\/127.0.0.1:801\/?p=9758"},"modified":"2026-10-13T03:20:25","modified_gmt":"2026-10-12T19:20:25","slug":"mathematics","status":"publish","type":"post","link":"https:\/\/www.hanliuquan.com\/?p=9758","title":{"rendered":"Mathematics"},"content":{"rendered":"<p>\n<\/p>\n<h2><span class=\"mw-headline\" id=\"Math\">Math<\/span><\/h2>\n<ul>\n<li>\uc218\ud559 &lt;\u6578\u5b78&gt; &#8211; mathematics<\/li>\n<li>\uc0b0\uc218 &lt;\u7b97\u6578&gt; &#8211; arithmetic<\/li>\n<li>\uacc4\uc0b0(\ud558\ub2e4) &lt;\u8a08\u7b97&gt; &#8211; a calculation, to calculate\n<ul>\n<li>\uacc4\uc0b0\uae30 &lt;\u8a08\u7b97\u5668 \/ \u8a08\u7b97\u6a5f&gt; &#8211; a calculator<\/li>\n<li>\uacf5\ud559\uc6a9 \uacc4\uc0b0\uae30 &#8211; a calculator for engineer<\/li>\n<\/ul>\n<\/li>\n<li>\uc5f0\uc0b0 &lt;\u6f14\u7b97&gt; &#8211; arithmetic operation<\/li>\n<li>\uc0ac\uce59\uc5f0\uc0b0 &lt;\u56db\u5247\u6f14\u7b97&gt; &#8211; the four arithmetical operations\n<ul>\n<li>\ub367\uc148\/\ub354\ud558\uae30 &#8211; addition<\/li>\n<li>\ube84\uc148\/\ube7c\uae30 &#8211; subtraction<\/li>\n<li>\uacf1\uc148\/\uacf1\ud558\uae30 &#8211; multiplication<\/li>\n<li>\ub098\ub217\uc148\/\ub098\ub204\uae30 &#8211; division<\/li>\n<\/ul>\n<\/li>\n<li>\ub4f1\ud638 &lt;\u7b49\u865f&gt; &#8211; equal sign\n<ul>\n<li>In a numerical formula, the equal sign is read as &#8216;\uc740\/\ub294&#8217;.<\/li>\n<li>3 + 5 = 8 [\uc0bc \ub354\ud558\uae30 \uc624<b>\ub294<\/b> \ud314]<\/li>\n<li>2 \u00d7 7 = 14 [ \uc774 \uacf1\ud558\uae30 \uce60<b>\uc740<\/b> \uc2ed\uc0ac]<\/li>\n<\/ul>\n<\/li>\n<li>\uc5ed\uc6d0 &lt;\u9006\u5143&gt; &#8211; inverse element<\/li>\n<li>\ubc18\uc62c\ub9bc &#8211; rounding off<\/li>\n<li>\ubbf8\uc801\ubd84 &lt;\u5fae\u7a4d\u5206&gt; &#8211; differential and integral calculus\n<ul>\n<li>\ubbf8\ubd84 &lt;\u5fae\u5206&gt; &#8211; differentiation<\/li>\n<li>\uc801\ubd84 &lt;\u7a4d\u5206&gt; &#8211; integral calculus<\/li>\n<\/ul>\n<\/li>\n<li>\ud655\ub960 &lt;\u78ba\u7387&gt; &#8211; probability<\/li>\n<li>\ud1b5\uacc4 &lt;\u7d71\u8a08&gt; &#8211; statistics<\/li>\n<li>\ud640\uc218 &lt;-\u6578&gt; &#8211; an odd number<\/li>\n<li>\uc9dd\uc218 &lt;-\u6578&gt; &#8211; an even number<\/li>\n<li>\ubca1\ud130\uacf5\uac04 &#8211; vector space<\/li>\n<li>\ud568\uc218 &lt;\u51fd\u6578&gt; &#8211; function<\/li>\n<\/ul>\n<p>\n<\/p>\n<h2><span class=\"mw-headline\" id=\"Number_Systems\">Number Systems<\/span><\/h2>\n<ul>\n<li>\uc815\uc218 &lt;\u6574\u6578&gt; &#8211; integer<\/li>\n<li>\uc720\ub9ac\uc218 &lt;\u6709\u7406\u6578&gt; &#8211; rational number<\/li>\n<li>\uc2e4\uc218 &lt;\u5be6\u6578&gt; &#8211; real number<\/li>\n<li>\uc790\uc5f0\uc218 &lt;\u967d-\u6574\u6578&gt; &#8211; natural number<\/li>\n<li>\ubcf5\uc18c\uc218 &lt;\u8907\u7d20\u6578&gt; &#8211; complex number<\/li>\n<li>\ubd84\uc218 &lt;\u5206\u6578&gt; &#8211; a fractional number [2\/3]<\/li>\n<li>\uc18c\uc218 &lt;\u5c0f\u6578&gt; &#8211;  a decimal [0.6667]<\/li>\n<li>\ud5c8\uc218 &lt;\u865b\u6578&gt; &#8211; an imaginary number<\/li>\n<\/ul>\n<h2><span class=\"mw-headline\" id=\"Laws\">Laws<\/span><\/h2>\n<ul>\n<li>\uad50\ud658\ubc95\uce59 &#8211; commutative law<\/li>\n<li>\ud53c\ud0c0\uace0\ub77c\uc2a4\uc758 \uc815\ub9ac &#8211; Pythagorean theorem<\/li>\n<li>\uc774\ud56d\uc815\ub9ac &lt;\u4e8c\u9805\u5b9a\u7406&gt; &#8211; binomial theorem\n<ul>\n<li>\ubbf8\ubd84 \ubc29\uc815\uc2dd &lt;\u5fae\u5206\u65b9\u7a0b\u5f0f&gt; &#8211; differential equation<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\n<\/p>\n<h2><span class=\"mw-headline\" id=\"Fields_of_Mathematics\">Fields of Mathematics<\/span><\/h2>\n<ul>\n<li>\ub300\uc218\ud559 &lt;\u4ee3\u6578\u5b78&gt; &#8211; algebra<\/li>\n<li>\uc9d1\ud569\ub860 &lt;\u96c6\u5408\u8ad6&gt; &#8211; set theory<\/li>\n<li>\uc870\ud569\ub860 &lt;\u7d44\u5408\u8ad6&gt; &#8211; combinatorics<\/li>\n<li>\uae30\ud558\ud559 &lt;\u5e7e\u4f55\u5b78&gt; &#8211; geometry<\/li>\n<li>\uc218\uce58 \ud574\uc11d &#8211; numerical analysis<\/li>\n<li>\uc815\uc218\ub860 &lt;\u6574\u6578\u8ad6&gt; &#8211; number Theory<\/li>\n<li>\uc120\ud615\ub300\uc218\ud559 &lt;\u7dda\u578b\u4ee3\u6578\u5b78&gt; &#8211; linear algebra<\/li>\n<li>\uad70\ub860 &lt;\u7fa4\u8ad6&gt; &#8211; group theory<\/li>\n<li>\uadf8\ub798\ud504 \uc774\ub860 &#8211; graph theory<\/li>\n<li>\uc0bc\uac01\ubc95 &lt;\u4e09\u89d2\u6cd5&gt; &#8211; trigonometry<\/li>\n<li>\ubbf8\uc801\ubd84\ud559 &lt;\u5fae[\u7a4d]]\u5206\u5b78&gt; &#8211; calculus<\/li>\n<li>\uc774\uc0b0\uc218\ud559 &lt;\u96e2\u6563\u6578\u5b78&gt; &#8211; discrete mathematics<\/li>\n<\/ul>\n<h2><span class=\"mw-headline\" id=\"Multiplication_table\">Multiplication table<\/span><\/h2>\n<ul>\n<li>\uad6c\uad6c\ub2e8 &lt;\u4e5d\u4e5d\u6bb5&gt; &#8211; multiplication tables\n<ul>\n<li>\uad6c\uad6c\ub2e8\uc744 \uc678\uc6b0\ub2e4 &#8211; memorize one&#8217;s tables<\/li>\n<li>\uad6c\uad6c\ub2e8\uc744 \uc678\uc790 &#8211; multiplication table challenge, a game students play to practice the tables. The game starts with a short song. Students take turns testing each other. If you get something wrong, you lose and get a punishment, like a flick on the forehead. &#8220;\uc678\uc790&#8221; is a shorten form of &#8220;\uc678\uc6b0\uc790&#8221; = &#8220;Let&#8217;s memorize&#8221;.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table class=\"wikitable\">\n<caption>\uad6c\uad6c\ub2e8<br \/>\n<\/caption>\n<tbody>\n<tr>\n<th>2\ub2e8<\/th>\n<th>3\ub2e8<\/th>\n<th>\u2026\u2026<\/th>\n<th>9\ub2e8\n<\/th>\n<\/tr>\n<tr>\n<td>2\u00d71=2\n<\/td>\n<td>3\u00d71=3\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<td>9\u00d71=9\n<\/td>\n<\/tr>\n<tr>\n<td>2\u00d72=4\n<\/td>\n<td>3\u00d72=6\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<td>9\u00d72=18\n<\/td>\n<\/tr>\n<tr>\n<td>\u2026\u2026\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<\/tr>\n<tr>\n<td>2\u00d79=18\n<\/td>\n<td>3\u00d79=27\n<\/td>\n<td>\u2026\u2026\n<\/td>\n<td>9\u00d79=81\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"mw-headline\" id=\"Examples\">Examples<\/span><\/h2>\n<table class=\"wikitable\" style=\"margin-left: auto;margin-right: auto\">\n<tbody>\n<tr>\n<th>Expression\n<\/th>\n<th>How to read it\n<\/th>\n<th>Comment\n<\/th>\n<\/tr>\n<tr>\n<td>*1 + 2\n<\/td>\n<td>\uc77c \ub354\ud558\uae30 \uc774\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>*1 + 2 = 3\n<\/td>\n<td>\uc77c \ub354\ud558\uae30 \uc774\ub294 \uc0bc\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>*5 &#8211; 4\n<\/td>\n<td>\uc624 \ube7c\uae30 \uc0ac\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>*3 * 4\n<\/td>\n<td>\uc0bc \uacf1\ud558\uae30 \uc0ac\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>5 \/ 2 (division)\n<\/td>\n<td>\uc624 \ub098\ub204\uae30 \uc774\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>2\u00b2\n<\/td>\n<td>\uc774\uc758 \uc774\uc2b9 or \uc774\uc758 \uc81c\uacf1\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>2\u00b3\n<\/td>\n<td>\uc774\uc758 \uc0bc\uc2b9 or \uc774\uc758 \uc138\uc81c\uacf1\n<\/td>\n<td>\uc758 pronounced as \uc5d0, as in: \uc774\uc5d0 \uc0bc\uc2b9\n<\/td>\n<\/tr>\n<tr>\n<td>\u00bc\n<\/td>\n<td>\uc0ac\ubd84\uc758 \uc77c\n<\/td>\n<td>\uc758 pronounced as \uc5d0, as in:\uc0ac\ubd84\uc5d0 \uc77c\n<\/td>\n<\/tr>\n<tr>\n<td>\u00bd\n<\/td>\n<td>\uc774\ubd84\uc758 \uc77c\n<\/td>\n<td>\uc758 pronounced as \uc5d0, as in:\uc774\ubd84\uc5d0 \uc77c\n<\/td>\n<\/tr>\n<tr>\n<td>\u00be\n<\/td>\n<td>\uc0ac\ubd84\uc758 \uc0bc\n<\/td>\n<td>\uc758 pronounced as \uc5d0, as in: \uc0ac\ubd84\uc5d0 \uc0bc\n<\/td>\n<\/tr>\n<tr>\n<td>2.1\n<\/td>\n<td>\uc774 \uc810 \uc77c\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<tr>\n<td>0.9\n<\/td>\n<td>\uc601 \uc810 \uad6c\n<\/td>\n<td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"mw-headline\" id=\"Related_Pages\">Related Pages<\/span><\/h2>\n<ul>\n<li>Numbers and counting<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Math \uc218\ud559 &lt;\u6578\u5b78&gt; &#8211; mathematics \uc0b0\uc218 &lt;\u7b97\u6578&gt; &#038;#&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-9758","post","type-post","status-publish","format-standard","hentry","category-kr-open-book"],"_links":{"self":[{"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=\/wp\/v2\/posts\/9758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9758"}],"version-history":[{"count":0,"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=\/wp\/v2\/posts\/9758\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hanliuquan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}