{"id":2830,"date":"2023-07-20T12:26:30","date_gmt":"2023-07-20T12:26:30","guid":{"rendered":"https:\/\/statorials.org\/id\/produk-lintas-python\/"},"modified":"2023-07-20T12:26:30","modified_gmt":"2023-07-20T12:26:30","slug":"produk-lintas-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/produk-lintas-python\/","title":{"rendered":"Cara menghitung perkalian silang dengan python"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Dengan asumsi kita memiliki vektor A dengan elemen (A <sub>1<\/sub> , A <sub>2<\/sub> , A <sub>3<\/sub> ) dan vektor B dengan elemen (B <sub>1<\/sub> , B <sub>2<\/sub> , B <sub>3<\/sub> ), kita dapat menghitung perkalian silang kedua vektor tersebut sebagai berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Perkalian silang<\/strong> = [(A <sub>2<\/sub> *B <sub>3<\/sub> ) \u2013 (A <sub>3<\/sub> *B <sub>2<\/sub> ), (A <sub>3<\/sub> *B <sub>1<\/sub> ) \u2013 (A <sub>1<\/sub> *B <sub>3<\/sub> ), (A <sub>1<\/sub> *B <sub>2<\/sub> ) \u2013 (A <sub>2<\/sub> *B <sub>1<\/sub> )]<\/span><\/p>\n<p> <span style=\"color: #000000;\">Misalnya kita mempunyai vektor-vektor berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Vektor A : (1, 2, 3)<\/span><\/li>\n<li> <span style=\"color: #000000;\">Vektor B: (4, 5, 6)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Kita dapat menghitung perkalian silang vektor-vektor tersebut sebagai berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Perkalian silang = [(A <sub>2<\/sub> *B <sub>3<\/sub> ) \u2013 (A <sub>3<\/sub> *B <sub>2<\/sub> ), (A <sub>3<\/sub> *B <sub>1<\/sub> ) \u2013 (A <sub>1<\/sub> *B <sub>3<\/sub> ), (A <sub>1<\/sub> *B <sub>2<\/sub> ) \u2013 (A <sub>2<\/sub> *B <sub>1<\/sub> )]<\/span><\/li>\n<li> <span style=\"color: #000000;\">Perkalian silang = [(2*6) \u2013 (3*5), (3*4) \u2013 (1*6), (1*5) \u2013 (2*4)]<\/span><\/li>\n<li> <span style=\"color: #000000;\">Hasil kali silang = (-3, 6, -3)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Anda dapat menggunakan salah satu dari dua metode berikut untuk menghitung perkalian silang dua vektor dengan Python:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metode 1: Gunakan fungsi cross() NumPy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n  \n<span style=\"color: #008080;\">#calculate cross product of vectors A and B\n<\/span>n.p. <span style=\"color: #3366ff;\">cross<\/span> (A, B)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metode 2: Tentukan fungsi Anda sendiri<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define function to calculate cross product<\/span> \n<span style=\"color: #008000;\">def<\/span> <span style=\"color: #3366ff;\">cross_prod<\/span> (a,b):\n    result = [a[1] <span style=\"color: #800080;\">*<\/span> b[2] - a[2] <span style=\"color: #800080;\">*<\/span> b[1],\n            a[2] <span style=\"color: #800080;\">*<\/span> b[0] - a[0] <span style=\"color: #800080;\">*<\/span> b[2],\n            a[0] <span style=\"color: #800080;\">*<\/span> b[1] - a[1] <span style=\"color: #800080;\">*<\/span> b[0]]\n\n    <span style=\"color: #008000;\">return<\/span> result\n\n<span style=\"color: #008080;\">#calculate cross product\n<\/span>cross_prod(A, B)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan masing-masing metode dalam praktik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: menggunakan fungsi NumPy cross()<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <a href=\"https:\/\/numpy.org\/doc\/stable\/reference\/generated\/numpy.cross.html\" target=\"_blank\" rel=\"noopener\">cross()<\/a> NumPy untuk menghitung perkalian silang antara dua vektor:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\">#definevectors<\/span>\nA = np. <span style=\"color: #3366ff;\">array<\/span> ([1, 2, 3])\nB = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 5, 6])\n  \n<span style=\"color: #008080;\">#calculate cross product of vectors A and B\n<\/span>n.p. <span style=\"color: #3366ff;\">cross<\/span> (A, B)\n\n[-3, 6, -3]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Hasil perkalian silangnya adalah <strong>(-3, 6, -3)<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ini sesuai dengan perkalian silang yang kami hitung secara manual sebelumnya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Tentukan fungsi Anda sendiri<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mendefinisikan fungsi Anda sendiri untuk menghitung perkalian silang antara dua vektor:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define function to calculate cross product<\/span> \n<span style=\"color: #008000;\">def<\/span> <span style=\"color: #3366ff;\">cross_prod<\/span> (a,b):\n    result = [a[1] <span style=\"color: #800080;\">*<\/span> b[2] - a[2] <span style=\"color: #800080;\">*<\/span> b[1],\n            a[2] <span style=\"color: #800080;\">*<\/span> b[0] - a[0] <span style=\"color: #800080;\">*<\/span> b[2],\n            a[0] <span style=\"color: #800080;\">*<\/span> b[1] - a[1] <span style=\"color: #800080;\">*<\/span> b[0]]\n\n    <span style=\"color: #008000;\">return<\/span> result\n\n<span style=\"color: #008080;\">#definevectors<\/span>\nA = np. <span style=\"color: #3366ff;\">array<\/span> ([1, 2, 3])\nB = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 5, 6])\n\n<span style=\"color: #008080;\">#calculate cross product\n<\/span>cross_prod(A, B)\n\n[-3, 6, -3]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Hasil perkalian silangnya adalah <strong>(-3, 6, -3)<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ini sesuai dengan perkalian silang yang kita hitung pada contoh sebelumnya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan tugas umum lainnya dengan Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/produk-titik-numpy\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung perkalian titik menggunakan NumPy<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/matriks-normalisasi-numpy\/\" target=\"_blank\" rel=\"noopener\">Cara menormalkan matriks NumPy<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/numpy-menambahkan-baris-ke-matriks\/\" target=\"_blank\" rel=\"noopener\">Bagaimana cara menambahkan baris ke matriks di NumPy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dengan asumsi kita memiliki vektor A dengan elemen (A 1 , A 2 , A 3 ) dan vektor B dengan elemen (B 1 , B 2 , B 3 ), kita dapat menghitung perkalian silang kedua vektor tersebut sebagai berikut: Perkalian silang = [(A 2 *B 3 ) \u2013 (A 3 *B 2 ), [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - 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