{"product_id":"national-engineering-forms-12-187-polar-coordinate-20-sheets","title":"National® Engineering Forms 12-187 | Polar Coordinate Graph Paper | 11\" × 8½\" | 20 Sheets | Heavy Weight Engineering Paper","description":"\u003cp data-start=\"324\" data-end=\"685\" class=\"PDq2pG_selectionAnchorContainer\"\u003eRealice gráficos polares, análisis angulares y diagramas técnicos con precisión utilizando las \u003cstrong data-start=\"419\" data-end=\"464\"\u003eNational® Engineering Forms Modelo 12-187\u003c\/strong\u003e. Este paquete incluye \u003cstrong data-start=\"487\" data-end=\"522\"\u003e20 hojas de papel de ingeniería\u003c\/strong\u003e con una \u003cstrong data-start=\"531\" data-end=\"568\"\u003ecuadrícula de coordenadas polares\u003c\/strong\u003e, diseñada para aplicaciones en ingeniería, matemáticas, física, electrónica, telecomunicaciones y educación técnica.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"687\" data-end=\"927\"\u003eEl diseño de coordenadas polares facilita la representación de funciones polares, diagramas vectoriales, patrones circulares, análisis de ondas, antenas, navegación y otros proyectos donde las mediciones angulares y radiales son esenciales.\u003c\/p\u003e\n\u003cp data-start=\"929\" data-end=\"1211\"\u003eFabricadas con \u003cstrong data-start=\"944\" data-end=\"969\"\u003epapel de alto gramaje\u003c\/strong\u003e, estas hojas ofrecen una superficie resistente para escribir, dibujar y realizar cálculos técnicos. La impresión utiliza \u003cstrong data-start=\"1091\" data-end=\"1162\"\u003etinta litográfica resistente a manchas (Lithographed\/Non-Smear Ink)\u003c\/strong\u003e para producir líneas claras y de alta precisión.\u003c\/p\u003e\n\u003cp data-start=\"1213\" data-end=\"1473\"\u003eAdemás, las hojas son \u003cstrong data-start=\"1235\" data-end=\"1290\"\u003ereproducibles mediante todos los métodos de copiado\u003c\/strong\u003e, por lo que pueden fotocopiarse, escanearse y archivarse sin perder definición. Cada hoja está \u003cstrong data-start=\"1386\" data-end=\"1421\"\u003epreperforada con tres orificios\u003c\/strong\u003e, lista para archivadores estándar de tres argollas.\u003c\/p\u003e\n\u003cp data-start=\"1475\" data-end=\"1649\"\u003eCon un tamaño de \u003cstrong data-start=\"1492\" data-end=\"1513\"\u003e11\" × 8½\" (Carta)\u003c\/strong\u003e, estas hojas son ideales para ingenieros, arquitectos, estudiantes universitarios, investigadores, profesores y profesionales técnicos.\u003c\/p\u003e\n\u003chr data-start=\"1651\" data-end=\"1654\"\u003e\n\u003ch2 data-section-id=\"17zls6v\" data-start=\"1656\" data-end=\"1666\"\u003eEnglish\u003c\/h2\u003e\n\u003cp data-start=\"1668\" data-end=\"2002\"\u003eCreate accurate polar graphs, angular plots, and technical diagrams with \u003cstrong data-start=\"1741\" data-end=\"1785\"\u003eNational® Engineering Forms Model 12-187\u003c\/strong\u003e. This package includes \u003cstrong data-start=\"1809\" data-end=\"1857\"\u003e20 sheets of premium engineering graph paper\u003c\/strong\u003e featuring a \u003cstrong data-start=\"1870\" data-end=\"1890\"\u003ePolar Coordinate\u003c\/strong\u003e grid, designed for engineering, mathematics, physics, electronics, telecommunications, and technical education.\u003c\/p\u003e\n\u003cp data-start=\"2004\" data-end=\"2227\"\u003eThe polar coordinate layout is ideal for plotting polar functions, vector diagrams, circular patterns, wave analysis, antenna radiation patterns, navigation, and other applications requiring angular and radial measurements.\u003c\/p\u003e\n\u003cp data-start=\"2229\" data-end=\"2469\"\u003eMade from \u003cstrong data-start=\"2239\" data-end=\"2261\"\u003eheavy-weight paper\u003c\/strong\u003e, these sheets provide a durable surface for graphing, calculations, and technical drawing. The \u003cstrong data-start=\"2357\" data-end=\"2387\"\u003elithographed non-smear ink\u003c\/strong\u003e produces crisp, high-contrast grid lines for excellent readability and precision.\u003c\/p\u003e\n\u003cp data-start=\"2471\" data-end=\"2714\"\u003eThese engineering forms are \u003cstrong data-start=\"2499\" data-end=\"2538\"\u003ereproducible by all copying methods\u003c\/strong\u003e, making them suitable for photocopying, scanning, filing, and sharing technical documentation. Each sheet is \u003cstrong data-start=\"2648\" data-end=\"2670\"\u003ethree-hole punched\u003c\/strong\u003e for convenient storage in standard binders.\u003c\/p\u003e\n\u003cp data-start=\"2716\" data-end=\"2884\"\u003eMeasuring \u003cstrong data-start=\"2726\" data-end=\"2753\"\u003e11\" × 8½\" (Letter Size)\u003c\/strong\u003e, these engineering forms are an excellent choice for engineers, scientists, architects, educators, technicians, and STEM students.\u003c\/p\u003e\n\u003chr data-start=\"2886\" data-end=\"2889\"\u003e\n\u003ch1 data-section-id=\"k1ohk1\" data-start=\"2891\" data-end=\"2920\"\u003eCaracterísticas principales\u003c\/h1\u003e\n\u003cul data-start=\"2922\" data-end=\"3255\"\u003e\n\u003cli data-section-id=\"1yi6egc\" data-start=\"2922\" data-end=\"2943\"\u003e✔ Modelo \u003cstrong data-start=\"2933\" data-end=\"2943\"\u003e12-187\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hmn9op\" data-start=\"2944\" data-end=\"2979\"\u003e✔ Cuadrícula \u003cstrong data-start=\"2959\" data-end=\"2979\"\u003ePolar Coordinate\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1l60g1t\" data-start=\"2980\" data-end=\"2996\"\u003e✔ \u003cstrong data-start=\"2984\" data-end=\"2996\"\u003e20 hojas\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jdmelp\" data-start=\"2997\" data-end=\"3029\"\u003e✔ Tamaño \u003cstrong data-start=\"3008\" data-end=\"3029\"\u003e11\" × 8½\" (Carta)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"geof5g\" data-start=\"3030\" data-end=\"3055\"\u003e✔ Papel de alto gramaje\u003c\/li\u003e\n\u003cli data-section-id=\"1muv8yf\" data-start=\"3056\" data-end=\"3098\"\u003e✔ Tinta litográfica resistente a manchas\u003c\/li\u003e\n\u003cli data-section-id=\"42jkx3\" data-start=\"3099\" data-end=\"3153\"\u003e✔ Reproducible mediante todos los métodos de copiado\u003c\/li\u003e\n\u003cli data-section-id=\"slh07b\" data-start=\"3154\" data-end=\"3194\"\u003e✔ Tres perforaciones para archivadores\u003c\/li\u003e\n\u003cli data-section-id=\"lvl0yy\" data-start=\"3195\" data-end=\"3255\"\u003e✔ Ideal para ingeniería, matemáticas, física y electrónica\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3257\" data-end=\"3260\"\u003e\n\u003ch1 data-section-id=\"u0ybrq\" data-start=\"3262\" data-end=\"3276\"\u003eKey Features\u003c\/h1\u003e\n\u003cul data-start=\"3278\" data-end=\"3520\"\u003e\n\u003cli data-section-id=\"b4d707\" data-start=\"3278\" data-end=\"3296\"\u003eModel \u003cstrong data-start=\"3286\" data-end=\"3296\"\u003e12-187\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x0rc42\" data-start=\"3297\" data-end=\"3320\"\u003ePolar Coordinate grid\u003c\/li\u003e\n\u003cli data-section-id=\"1toiiqe\" data-start=\"3321\" data-end=\"3332\"\u003e20 sheets\u003c\/li\u003e\n\u003cli data-section-id=\"1oobyo0\" data-start=\"3333\" data-end=\"3358\"\u003eLetter size (11\" × 8½\")\u003c\/li\u003e\n\u003cli data-section-id=\"12v6tqo\" data-start=\"3359\" data-end=\"3379\"\u003eHeavy-weight paper\u003c\/li\u003e\n\u003cli data-section-id=\"qp7xat\" data-start=\"3380\" data-end=\"3408\"\u003eNon-smear lithographed ink\u003c\/li\u003e\n\u003cli data-section-id=\"ow3my9\" data-start=\"3409\" data-end=\"3446\"\u003eReproducible by all copying methods\u003c\/li\u003e\n\u003cli data-section-id=\"1ly8fr8\" data-start=\"3447\" data-end=\"3467\"\u003eThree-hole punched\u003c\/li\u003e\n\u003cli data-section-id=\"16upmj6\" data-start=\"3468\" data-end=\"3520\"\u003eDesigned for technical and scientific applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3522\" data-end=\"3525\"\u003e\n\u003ch1 data-section-id=\"qub0z1\" data-start=\"3527\" data-end=\"3541\"\u003eAplicaciones\u003c\/h1\u003e\n\u003cp data-start=\"3543\" data-end=\"3554\"\u003eIdeal para:\u003c\/p\u003e\n\u003cul data-start=\"3556\" data-end=\"3786\"\u003e\n\u003cli data-section-id=\"oia15o\" data-start=\"3556\" data-end=\"3589\"\u003eGráficas de coordenadas polares\u003c\/li\u003e\n\u003cli data-section-id=\"114tdgf\" data-start=\"3590\" data-end=\"3612\"\u003eIngeniería eléctrica\u003c\/li\u003e\n\u003cli data-section-id=\"1342ge6\" data-start=\"3613\" data-end=\"3634\"\u003eIngeniería mecánica\u003c\/li\u003e\n\u003cli data-section-id=\"t9qak\" data-start=\"3635\" data-end=\"3655\"\u003eTelecomunicaciones\u003c\/li\u003e\n\u003cli data-section-id=\"1rgqwph\" data-start=\"3656\" data-end=\"3669\"\u003eMatemáticas\u003c\/li\u003e\n\u003cli data-section-id=\"1vinezf\" data-start=\"3670\" data-end=\"3678\"\u003eFísica\u003c\/li\u003e\n\u003cli data-section-id=\"1klpbw7\" data-start=\"3679\" data-end=\"3692\"\u003eElectrónica\u003c\/li\u003e\n\u003cli data-section-id=\"yics04\" data-start=\"3693\" data-end=\"3716\"\u003eDiagramas vectoriales\u003c\/li\u003e\n\u003cli data-section-id=\"s8dsfd\" data-start=\"3717\" data-end=\"3738\"\u003eAnálisis de antenas\u003c\/li\u003e\n\u003cli data-section-id=\"rs4c2r\" data-start=\"3739\" data-end=\"3754\"\u003eInvestigación\u003c\/li\u003e\n\u003cli data-section-id=\"ku3r8n\" data-start=\"3755\" data-end=\"3769\"\u003eLaboratorios\u003c\/li\u003e\n\u003cli data-section-id=\"1v1h3d2\" data-start=\"3770\" data-end=\"3786\"\u003eEducación STEM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3788\" data-end=\"3791\"\u003e\n\u003ch1 data-section-id=\"osaite\" data-start=\"3793\" data-end=\"3814\"\u003eCommon Applications\u003c\/h1\u003e\n\u003cul data-start=\"3816\" data-end=\"4020\"\u003e\n\u003cli data-section-id=\"txn8py\" data-start=\"3816\" data-end=\"3843\"\u003ePolar coordinate graphing\u003c\/li\u003e\n\u003cli data-section-id=\"15wvg17\" data-start=\"3844\" data-end=\"3870\"\u003eEngineering calculations\u003c\/li\u003e\n\u003cli data-section-id=\"rnalek\" data-start=\"3871\" data-end=\"3884\"\u003eMathematics\u003c\/li\u003e\n\u003cli data-section-id=\"tim97n\" data-start=\"3885\" data-end=\"3894\"\u003ePhysics\u003c\/li\u003e\n\u003cli data-section-id=\"1hzzzll\" data-start=\"3895\" data-end=\"3908\"\u003eElectronics\u003c\/li\u003e\n\u003cli data-section-id=\"tsb9ab\" data-start=\"3909\" data-end=\"3929\"\u003eTelecommunications\u003c\/li\u003e\n\u003cli data-section-id=\"1e9ensf\" data-start=\"3930\" data-end=\"3958\"\u003eAntenna radiation patterns\u003c\/li\u003e\n\u003cli data-section-id=\"103k3ur\" data-start=\"3959\" data-end=\"3976\"\u003eVector analysis\u003c\/li\u003e\n\u003cli data-section-id=\"1od4uuq\" data-start=\"3977\" data-end=\"3998\"\u003eScientific research\u003c\/li\u003e\n\u003cli data-section-id=\"1h4fr69\" data-start=\"3999\" data-end=\"4020\"\u003eTechnical education\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4022\" data-end=\"4025\"\u003e\n\u003ch1 data-section-id=\"1clumlb\" data-start=\"4027\" data-end=\"4045\"\u003eEspecificaciones\u003c\/h1\u003e\n\u003cp data-start=\"4047\" data-end=\"4067\"\u003e\u003cstrong data-start=\"4047\" data-end=\"4057\"\u003eMarca:\u003c\/strong\u003e National®\u003c\/p\u003e\n\u003cp data-start=\"4069\" data-end=\"4100\"\u003e\u003cstrong data-start=\"4069\" data-end=\"4082\"\u003eProducto:\u003c\/strong\u003e Engineering Forms\u003c\/p\u003e\n\u003cp data-start=\"4102\" data-end=\"4120\"\u003e\u003cstrong data-start=\"4102\" data-end=\"4113\"\u003eModelo:\u003c\/strong\u003e 12-187\u003c\/p\u003e\n\u003cp data-start=\"4122\" data-end=\"4150\"\u003e\u003cstrong data-start=\"4122\" data-end=\"4133\"\u003ePatrón:\u003c\/strong\u003e Polar Coordinate\u003c\/p\u003e\n\u003cp data-start=\"4152\" data-end=\"4174\"\u003e\u003cstrong data-start=\"4152\" data-end=\"4165\"\u003eCantidad:\u003c\/strong\u003e 20 hojas\u003c\/p\u003e\n\u003cp data-start=\"4176\" data-end=\"4205\"\u003e\u003cstrong data-start=\"4176\" data-end=\"4187\"\u003eTamaño:\u003c\/strong\u003e 11\" × 8½\" (Carta)\u003c\/p\u003e\n\u003cp data-start=\"4207\" data-end=\"4244\"\u003e\u003cstrong data-start=\"4207\" data-end=\"4225\"\u003eTipo de papel:\u003c\/strong\u003e Heavy Weight Paper\u003c\/p\u003e\n\u003cp data-start=\"4246\" data-end=\"4287\"\u003e\u003cstrong data-start=\"4246\" data-end=\"4260\"\u003eImpresión:\u003c\/strong\u003e Lithographed Non-Smear Ink\u003c\/p\u003e\n\u003cp data-start=\"4289\" data-end=\"4350\"\u003e\u003cstrong data-start=\"4289\" data-end=\"4306\"\u003eReproducción:\u003c\/strong\u003e Compatible con todos los métodos de copiado\u003c\/p\u003e\n\u003cp data-start=\"4352\" data-end=\"4389\"\u003e\u003cstrong data-start=\"4352\" data-end=\"4370\"\u003ePerforaciones:\u003c\/strong\u003e Tres perforaciones\u003c\/p\u003e\n\u003cp data-start=\"4391\" data-end=\"4411\"\u003e\u003cstrong data-start=\"4391\" data-end=\"4405\"\u003eCondición:\u003c\/strong\u003e Nuevo\u003c\/p\u003e\n\u003chr data-start=\"4413\" data-end=\"4416\"\u003e\n\u003ch1 data-section-id=\"1spgaq0\" data-start=\"4418\" data-end=\"4434\"\u003eSpecifications\u003c\/h1\u003e\n\u003cp data-start=\"4436\" data-end=\"4456\"\u003e\u003cstrong data-start=\"4436\" data-end=\"4446\"\u003eBrand:\u003c\/strong\u003e National®\u003c\/p\u003e\n\u003cp data-start=\"4458\" data-end=\"4488\"\u003e\u003cstrong data-start=\"4458\" data-end=\"4470\"\u003eProduct:\u003c\/strong\u003e Engineering Forms\u003c\/p\u003e\n\u003cp data-start=\"4490\" data-end=\"4507\"\u003e\u003cstrong data-start=\"4490\" data-end=\"4500\"\u003eModel:\u003c\/strong\u003e 12-187\u003c\/p\u003e\n\u003cp data-start=\"4509\" data-end=\"4543\"\u003e\u003cstrong data-start=\"4509\" data-end=\"4526\"\u003eGrid Pattern:\u003c\/strong\u003e Polar Coordinate\u003c\/p\u003e\n\u003cp data-start=\"4545\" data-end=\"4559\"\u003e\u003cstrong data-start=\"4545\" data-end=\"4556\"\u003eSheets:\u003c\/strong\u003e 20\u003c\/p\u003e\n\u003cp data-start=\"4561\" data-end=\"4586\"\u003e\u003cstrong data-start=\"4561\" data-end=\"4576\"\u003ePaper Size:\u003c\/strong\u003e 11\" × 8½\"\u003c\/p\u003e\n\u003cp data-start=\"4588\" data-end=\"4616\"\u003e\u003cstrong data-start=\"4588\" data-end=\"4603\"\u003ePaper Type:\u003c\/strong\u003e Heavy Weight\u003c\/p\u003e\n\u003cp data-start=\"4618\" data-end=\"4658\"\u003e\u003cstrong data-start=\"4618\" data-end=\"4631\"\u003ePrinting:\u003c\/strong\u003e Lithographed Non-Smear Ink\u003c\/p\u003e\n\u003cp data-start=\"4660\" data-end=\"4681\"\u003e\u003cstrong data-start=\"4660\" data-end=\"4677\"\u003eReproducible:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"4683\" data-end=\"4717\"\u003e\u003cstrong data-start=\"4683\" data-end=\"4698\"\u003eHole Punch:\u003c\/strong\u003e Three-hole punched\u003c\/p\u003e\n\u003cp data-start=\"4719\" data-end=\"4737\"\u003e\u003cstrong data-start=\"4719\" data-end=\"4733\"\u003eCondition:\u003c\/strong\u003e New\u003c\/p\u003e\n\u003chr data-start=\"4739\" data-end=\"4742\"\u003e\n\u003ch1 data-section-id=\"e185o4\" data-start=\"4744\" data-end=\"4789\"\u003e¿Por qué elegir National Engineering Forms?\u003c\/h1\u003e\n\u003cp data-start=\"4791\" data-end=\"5169\"\u003eLas \u003cstrong data-start=\"4795\" data-end=\"4825\"\u003eNational Engineering Forms\u003c\/strong\u003e son una opción confiable para estudiantes y profesionales que necesitan papel técnico especializado. El patrón \u003cstrong data-start=\"4937\" data-end=\"4957\"\u003ePolar Coordinate\u003c\/strong\u003e permite representar datos angulares y radiales con precisión, mientras que el papel resistente y la impresión de alta calidad garantizan resultados claros y profesionales para aplicaciones académicas y técnicas.\u003c\/p\u003e\n\u003chr data-start=\"5171\" data-end=\"5174\"\u003e\n\u003ch1 data-section-id=\"1ulln9e\" data-start=\"5176\" data-end=\"5204\"\u003ePreguntas frecuentes (FAQ)\u003c\/h1\u003e\n\u003ch3 data-section-id=\"mzb5xa\" data-start=\"5206\" data-end=\"5242\"\u003e¿Qué tipo de cuadrícula incluye?\u003c\/h3\u003e\n\u003cp data-start=\"5244\" data-end=\"5313\"\u003eIncluye una cuadrícula de \u003cstrong data-start=\"5270\" data-end=\"5312\"\u003ecoordenadas polares (Polar Coordinate)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1r5d3jr\" data-start=\"5315\" data-end=\"5343\"\u003e¿Cuántas hojas contiene?\u003c\/h3\u003e\n\u003cp data-start=\"5345\" data-end=\"5379\"\u003eCada paquete incluye \u003cstrong data-start=\"5366\" data-end=\"5378\"\u003e20 hojas\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"bvgppd\" data-start=\"5381\" data-end=\"5413\"\u003e¿Las hojas están perforadas?\u003c\/h3\u003e\n\u003cp data-start=\"5415\" data-end=\"5489\"\u003eSí. Están \u003cstrong data-start=\"5425\" data-end=\"5461\"\u003epreperforadas con tres orificios\u003c\/strong\u003e para archivadores estándar.\u003c\/p\u003e\n\u003ch3 data-section-id=\"36j0dk\" data-start=\"5491\" data-end=\"5528\"\u003e¿Se pueden fotocopiar o escanear?\u003c\/h3\u003e\n\u003cp data-start=\"5530\" data-end=\"5594\"\u003eSí. Son \u003cstrong data-start=\"5538\" data-end=\"5593\"\u003ereproducibles mediante todos los métodos de copiado\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rgujli\" data-start=\"5596\" data-end=\"5634\"\u003e¿Quién utiliza este tipo de papel?\u003c\/h3\u003e\n\u003cp data-start=\"5636\" data-end=\"5816\"\u003eIngenieros, arquitectos, científicos, estudiantes universitarios, investigadores, técnicos y docentes que trabajan con funciones polares, diagramas vectoriales y análisis técnicos.\u003c\/p\u003e","brand":"Mr. Office","offers":[{"title":"Default Title","offer_id":54154614374699,"sku":"MO-EF-12187-001","price":2.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/4938\/4235\/files\/ChatGPTImageJul21_2026_05_41_20PM.png?v=1784670102","url":"https:\/\/mrofficepr.myshopify.com\/products\/national-engineering-forms-12-187-polar-coordinate-20-sheets","provider":"Mr. Office School \u0026 Office Supplies","version":"1.0","type":"link"}