<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Tue, 21 Apr 2026 02:02:56 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/created/mathematics/rss.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[The Subject I Hated Became What I Needed]]></title><description><![CDATA[| There is always one or two subjects we disliked in our Secondary school days and I believe I am not the only one in this situation. For me, it was Mathematics. I hated the subject so much that when the]]></description><link>http://direct.ecency.com/hive-124452/@princessbusayo/the-subject-i-hated-became</link><guid isPermaLink="true">http://direct.ecency.com/hive-124452/@princessbusayo/the-subject-i-hated-became</guid><category><![CDATA[hive-124452]]></category><dc:creator><![CDATA[princessbusayo]]></dc:creator><pubDate>Sat, 18 Apr 2026 12:35:03 GMT</pubDate><enclosure url="https://images.ecency.com/p/3RTd4iuWD6NUeJEn5AVrJUoyatFqBqfcCJi1N7UixR4g2KPKN7w8NpZKoVk7BvQWgjDM9sPz7r6EKj3vcYXjDEcD9qLCeifdkmsx1BumNDHSZTegheSGAFvVBAatfA7nxGZFsfKeQFP6HiXX6YzqhvMZpMUokEqMsMNnfea5Dk1kp6?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[[religious brainwash]  Money for Nothing The Scientists, Fraudsters, and Corrupt Politicians Who Reinvented Money, Panicked a Nation, and Made the... #9/177]]></title><description><![CDATA[Most important, this new quantitative approach to nature offered the gift of prophecy: calculate now, and you can find where the moon or Jupiter or whatever will be, days, years, centuries from now. Though]]></description><link>http://direct.ecency.com/newton/@the.truth/religious-brainwash-money-for-nothing-the-scientists-fraudsters-and-corrupt-politicians-who-reinvented-money-panicked-a-nation-and-made-the-9-177</link><guid isPermaLink="true">http://direct.ecency.com/newton/@the.truth/religious-brainwash-money-for-nothing-the-scientists-fraudsters-and-corrupt-politicians-who-reinvented-money-panicked-a-nation-and-made-the-9-177</guid><category><![CDATA[newton]]></category><dc:creator><![CDATA[the.truth]]></dc:creator><pubDate>Thu, 09 Apr 2026 10:11:12 GMT</pubDate></item><item><title><![CDATA[垂径定理不能直接用 & 牛X的教研员！]]></title><description><![CDATA[初三数学有一个非常有意思的定理，叫做垂径定理，简单描述为： 在圆中，垂直于弦的直径平分这条弦，并且平分弦所对的两条弧。 (图源 ：pixabay) 垂径定理涉及五个核心要素 直径（过圆心） 垂直于弦 平分弦 平分弦所对的优弧 平分弦所对的劣弧 只要满足其中任意两个条件，通常就能推出另外三个结论（“平分弦”作为已知条件推“垂直”时，这条弦不能是直径），简称“知二推三”。]]></description><link>http://direct.ecency.com/hive-105017/@oflyhigh/and-x</link><guid isPermaLink="true">http://direct.ecency.com/hive-105017/@oflyhigh/and-x</guid><category><![CDATA[hive-105017]]></category><dc:creator><![CDATA[oflyhigh]]></dc:creator><pubDate>Wed, 11 Mar 2026 12:45:27 GMT</pubDate><enclosure url="https://images.ecency.com/p/PB8ro82ZpZP35bVGjGoE93K3E4U5KX8KtMBJ2rh8M7bauohLq7nzjXf8EBYZGwcK8ZF25RZHDeQUBVgaQeWMGn9zTgPDDgukjDojXYWbNnZFemHp?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Why Mathematics is the Secret Language of Design and Art]]></title><description><![CDATA[Hello everyone! Besides being a graphic designer, I am also a big fan of Mathematics. Many people find math boring, but to me, it’s the secret language behind every great design. From the "Golden]]></description><link>http://direct.ecency.com/hive-125125/@guzaw/why-mathematics-is-the-secret</link><guid isPermaLink="true">http://direct.ecency.com/hive-125125/@guzaw/why-mathematics-is-the-secret</guid><category><![CDATA[hive-125125]]></category><dc:creator><![CDATA[guzaw]]></dc:creator><pubDate>Wed, 11 Mar 2026 06:40:57 GMT</pubDate><enclosure url="https://images.ecency.com/p/2FFvzA2zeqoVPgRCnRzbu6rj6tCWHWVCA9ZaKB4ZpobuYUAcQtGgDdv5GbJAkjMYhPfSrrkDguV7ik2oEvCctYcS4bd8kyFqvWebt2pktfqaKnUaFc2ywsenUPyqg?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 6 Final]]></title><description><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 6 Final Imagen generada usando Bing Image Creator Para ver la quinta parte de este artículo puedes usar este enlace: Parte 5]]></description><link>http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-4f6fee53bfb5a</link><guid isPermaLink="true">http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-4f6fee53bfb5a</guid><category><![CDATA[hive-196387]]></category><dc:creator><![CDATA[retrotech-cuba]]></dc:creator><pubDate>Sat, 07 Mar 2026 18:45:33 GMT</pubDate><enclosure url="https://images.ecency.com/p/W5LtFUPm6g73GywJLc4qya717jY4hemJ4yGThw4Wx8BYyi5gq8XpQjtY8N7JhfjXxstkLzKFRYao4AqxEQPatQpDxxVZxnkUWszLpsCKgkeBhyYc5EeZq8GU4hJbEGrWHyPqepG3EJuvhQZrveKXwkr8eujTC?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[0 is not a number and multiply isn't x]]></title><description><![CDATA[0 is not a naturally counted number like 1 or 2. It is a human invented concept used to represent nothing, and it only becomes a number once we define rules for how it interacts in arithmetic. Its status]]></description><link>http://direct.ecency.com/math/@jonbit/0-is-not-a-number-and-multiply-isn-t-x</link><guid isPermaLink="true">http://direct.ecency.com/math/@jonbit/0-is-not-a-number-and-multiply-isn-t-x</guid><category><![CDATA[math]]></category><dc:creator><![CDATA[jonbit]]></dc:creator><pubDate>Wed, 25 Feb 2026 18:12:54 GMT</pubDate></item><item><title><![CDATA[Die Riemann Summe (Integralrechnung)]]></title><description><![CDATA[In diesem Beispiel soll eine Fläche mit der Riemann Summe berechnet werden. Das Prinzip besteht darin, dass man den Bereich [a;b] in unendlich viele Rechtecke zerlegt. Diese unendlich vielen Rechtecke]]></description><link>http://direct.ecency.com/deutsch/@ozelot47/die-riemann-summe-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/deutsch/@ozelot47/die-riemann-summe-integralrechnung</guid><category><![CDATA[deutsch]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Tue, 24 Feb 2026 15:28:57 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5rEKdZD1j85CqJn6bcdqJ12AY1Lj4FqsE32X3xia8Q361QjGpaXMQ3KjBYJ4W?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Leibnizregel für Parameterintegrale (Integralrechnung)]]></title><description><![CDATA[Ein Parameterintegral ist ein Integral dessen Integrand neben der Variable noch einen Paramter beinhaltet. Ein Parameter ist ein Wert der fest aber beliebig ist. Er kann immer wieder für den betrachteten]]></description><link>http://direct.ecency.com/deutsch/@ozelot47/leibnizregel-fur-parameterintegrale-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/deutsch/@ozelot47/leibnizregel-fur-parameterintegrale-integralrechnung</guid><category><![CDATA[deutsch]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Thu, 19 Feb 2026 14:24:24 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5acY5uBxHtbkzH3DXajEQQZHgbMSh6ZG7iqZZLPVJDqKNvYZM2usn2RgopJJJ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Mehrdimensionale Integration (Integralrechnung)]]></title><description><![CDATA[Hat man eine Funktion im Integral mit zwei oder mehr Variablen, so handelt es sich um eine Mehrdimensionale Integration. So ein Integral wird gelöst, indem man zuerst die Funktion nach einer Variablen]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/mehrdimensionale-integration-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/mehrdimensionale-integration-integralrechnung</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Sun, 15 Feb 2026 13:49:51 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5rDiedvX6NsYvEjyeNZGDdWWuD31aUevH4XBXzwGFqQHx8KkD25B5ZcB7A7DG?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Mathematics and Science Is Not All Logical and Sound As They Purport to Be!]]></title><description><![CDATA[Everyone thinks that math is logical, has been proven, and there is nothing wrong with it. They also believe that formulas, expressed in science books, are absolutely correct, at least in form. If a function]]></description><link>http://direct.ecency.com/hive-110786/@builderofcastles/mathematics-and-science-is-not-all-logical-and-sound-as-they-purport-to-be</link><guid isPermaLink="true">http://direct.ecency.com/hive-110786/@builderofcastles/mathematics-and-science-is-not-all-logical-and-sound-as-they-purport-to-be</guid><category><![CDATA[hive-110786]]></category><dc:creator><![CDATA[builderofcastles]]></dc:creator><pubDate>Sun, 15 Feb 2026 13:37:24 GMT</pubDate><enclosure url="https://images.ecency.com/p/4i88GgaV8qiFkxbnGCXnHPUK3daVLCQA4oDc4iy4TMS62nHv7bpMZTUavn3wTouWC9QnsukRCFLirek5voeVB4BT21paFbP9YxRUVDecnUuGyhT3yKnJXvTwXc?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Partielle Integration (Integralrechnung)]]></title><description><![CDATA[Die Partielle Integration wird auch Produktintegration genannt. Damit ist es möglich zwei Funktionen zu integrieren, indem man von einer Funktion die Ableitung und von der anderen Funktion die Stammfunktion]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/partielle-integration-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/partielle-integration-integralrechnung</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Wed, 11 Feb 2026 12:36:45 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5ca97YbtLYEhV8kzJpfLeFsxoPXuF7Xj7saCRjeH8Q5t3c9E4ggQv3KsKxHMg?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 4]]></title><description><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 4 Imagen generada usando Bing Image Creator Para ver la tercera parte de este artículo puedes usar este enlace: Parte 3 Introducción]]></description><link>http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-0fe449849bd54</link><guid isPermaLink="true">http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-0fe449849bd54</guid><category><![CDATA[hive-196387]]></category><dc:creator><![CDATA[retrotech-cuba]]></dc:creator><pubDate>Wed, 11 Feb 2026 05:25:12 GMT</pubDate><enclosure url="https://images.ecency.com/p/W5LtFUPm6g73GywJLc4qya717jY4hemJ4yGThw4Wx8BYyi5gq8XpQjtY8N7JhfjXxstkLzKFRYao4AqxEQPatQpDxxVZxnkUWszLpsCKgkeBhyYc5EeZq8GU4hJbEGrWHyPqepG3EJuvhQZrveKXwkr8eujTC?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[[religious brainwash]  Money for Nothing The Scientists, Fraudsters, and Corrupt Politicians Who Reinvented Money, Panicked a Nation, and Made the... #6/177]]></title><description><![CDATA[Some of the works Newton had already read used infinite series to attack a variety of questions—for one, chasing down ever more precise values for that bane of middle school geometers, π(the number used]]></description><link>http://direct.ecency.com/mathematics/@the.truth/religious-brainwash-money-for-nothing-the-scientists-fraudsters-and-corrupt-politicians-who-reinvented-money-panicked-a-nation-and-made-the-6-177</link><guid isPermaLink="true">http://direct.ecency.com/mathematics/@the.truth/religious-brainwash-money-for-nothing-the-scientists-fraudsters-and-corrupt-politicians-who-reinvented-money-panicked-a-nation-and-made-the-6-177</guid><category><![CDATA[mathematics]]></category><dc:creator><![CDATA[the.truth]]></dc:creator><pubDate>Mon, 09 Feb 2026 17:03:42 GMT</pubDate></item><item><title><![CDATA[Unbekannte Integrationsgrenze (Integralrechnung)]]></title><description><![CDATA[Im Normalfall kennt man die Integrationsgrenzen als feste aber beliebige Zahlen. Es kann auch vorkommen, dass eine Integrationsgrenze unbekannt ist. In diesem Fall bildet man wie gewohnt die Stammfunktion.]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/unbekannte-integrationsgrenze-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/unbekannte-integrationsgrenze-integralrechnung</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Mon, 09 Feb 2026 11:15:15 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5aMDMRg2KRU5xPMQ1oh87e5fCzKWgjGbXEkVuDRezdLE1S6PuVq31ejRyENNi?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Demystifying Complex Numbers]]></title><description><![CDATA[Complex numbers are one of the more difficult mathematical concepts to understand. In this video, I use the not very well known 2x2 matrix version of complex numbers to demystify complex numbers. ▶️ 3Speak]]></description><link>http://direct.ecency.com/hive-181335/@fractalwoman/808810f6</link><guid isPermaLink="true">http://direct.ecency.com/hive-181335/@fractalwoman/808810f6</guid><category><![CDATA[hive-181335]]></category><dc:creator><![CDATA[fractalwoman]]></dc:creator><pubDate>Fri, 06 Feb 2026 02:40:03 GMT</pubDate><enclosure url="https://images.ecency.com/p/PB8ro82ZpZP35nu5CJ2bLWtWovSWCek72zkxirh28oqXP6byR2EtenADNMeHqJsFZx2DsXYke32TiZkRpNPqsc5wxkFVZ519VhNd5M4TW7yYxjD8?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Das uneigentliche Integral (Integralrechnung)]]></title><description><![CDATA[Ein Integral nennt sich uneigentlich, falls eine oder beide Integrationsgrenzen entweder unendlich sind, oder eine Definitionslücke beinhalten. Mit einem (un)bestimmten Integral lassen sich diese]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/das-uneigentliche-integral-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/das-uneigentliche-integral-integralrechnung</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Wed, 04 Feb 2026 13:03:39 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5rZAdDstDABBkviRFnDH8o49bkRLPJceDLaQdfgyxF6MYZ7Qk4wh6cSb6PXGA?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 3]]></title><description><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 3 Imagen generada usando Bing Image Creator Para ver la segunda parte de este artículo puedes usar este enlace: Parte 2 Introducción]]></description><link>http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-b8341804b8114</link><guid isPermaLink="true">http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-b8341804b8114</guid><category><![CDATA[hive-196387]]></category><dc:creator><![CDATA[retrotech-cuba]]></dc:creator><pubDate>Wed, 04 Feb 2026 06:57:18 GMT</pubDate><enclosure url="https://images.ecency.com/p/W5LtFUPm6g73GywJLc4qya717jY4hemJ4yGThw4Wx8BYyi5gq8XpQjtY8N7JhfjXxstkLzKFRYao4AqxEQPatQpDxxVZxnkUWszLpsCKgkeBhyYc5EeZq8GU4hJbEGrWHyPqepG3EJuvhQZrveKXwkr8eujTC?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Das bestimmte Integral (Integralrechnung)]]></title><description><![CDATA[Die Integralrechnung ist das Gegenstück zur Differentialrechnung und wird verwendet, um eine Fläche zwischen zwei Funktionen oder eine Fläche zwischen einer Funktion und x-Achse zu berechnen. Um eine Funktion]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/das-bestimmte-integral-integralrechnung</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/das-bestimmte-integral-integralrechnung</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Mon, 02 Feb 2026 11:36:42 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5rYxaKhsqmsDn1Pc9112mNU7WAaDXkiGvqrHMLfdo97dtT8o3p6FdCTXsW766?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 2]]></title><description><![CDATA[¿Cómo hacer un intérprete de ecuaciones matemáticas en QuickBASIC? Parte 2 Imagen generada usando Bing Image Creator Para ver la primera parte de este artículo puedes usar este enlace: Parte 1 Introducción]]></description><link>http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-f056cfcd2f768</link><guid isPermaLink="true">http://direct.ecency.com/hive-196387/@retrotech-cuba/como-hacer-un-interprete-de-f056cfcd2f768</guid><category><![CDATA[hive-196387]]></category><dc:creator><![CDATA[retrotech-cuba]]></dc:creator><pubDate>Wed, 28 Jan 2026 07:49:42 GMT</pubDate><enclosure url="https://images.ecency.com/p/W5LtFUPm6g73GywJLc4qya717jY4hemJ4yGThw4Wx8BYyi5gq8XpQjtY8N7JhfjXxstkLzKFRYao4AqxEQPatQpDxxVZxnkUWszLpsCKgkeBhyYc5EeZq8GU4hJbEGrWHyPqepG3EJuvhQZrveKXwkr8eujTC?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Dimension eines Vektorraumes (Vektorraum)]]></title><description><![CDATA[Die Dimension eines K-Vektorraumes ist die endliche Länge seiner Basis B. Wenn ein Vektorraum keine endliche Basis besitzt, so ist die Dimension unendlich. Eine Dimension bedeutet nicht wieviele Vektoren]]></description><link>http://direct.ecency.com/hive-121566/@ozelot47/dimension-eines-vektorraumes-vektorraum</link><guid isPermaLink="true">http://direct.ecency.com/hive-121566/@ozelot47/dimension-eines-vektorraumes-vektorraum</guid><category><![CDATA[hive-121566]]></category><dc:creator><![CDATA[ozelot47]]></dc:creator><pubDate>Tue, 27 Jan 2026 11:22:57 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pJD9XBuUkGp7K2nzaBPFLeCpuRpaYEo7eBLncyPcW8DJxzaZH5sCbrspffcPx6ju3h4XKWWCcQ7LqSrkuTjMuPnbDBTP9gEVpDCSY6KzJGJT2E?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>