{"product_id":"fs-991es-plus","title":"fs-991ES PLUS Scientific Calculator – Purple","description":"\u003cp data-start=\"0\" data-end=\"40\"\u003eUNIT FS-991ES PLUS Scientific Calculator\u003c\/p\u003e\n\u003cp data-start=\"42\" data-end=\"386\"\u003eDesigned for students, professionals, and everyday calculations, the UNIT FS-991ES PLUS offers up to 417 built-in functions to handle everything from basic arithmetic to advanced scientific operations. Its textbook-style display shows equations and expressions exactly as they appear in books, making calculations easier to read and understand.\u003c\/p\u003e\n\u003cp data-start=\"388\" data-end=\"397\"\u003eFeatures:\u003c\/p\u003e\n\u003cp data-start=\"399\" data-end=\"761\"\u003e• 417 built-in functions\u003cbr data-start=\"423\" data-end=\"426\"\u003e• Natural textbook display for clearer expressions\u003cbr data-start=\"476\" data-end=\"479\"\u003e• Two-way power system with solar and battery operation\u003cbr data-start=\"534\" data-end=\"537\"\u003e• Supports fractions, matrices, vectors, complex numbers, and statistics\u003cbr data-start=\"609\" data-end=\"612\"\u003e• Integral and differential calculation functions\u003cbr data-start=\"661\" data-end=\"664\"\u003e• Easy menu navigation system\u003cbr data-start=\"693\" data-end=\"696\"\u003e• Ideal for school, university, engineering, and scientific use\u003c\/p\u003e\n\u003cp data-start=\"763\" data-end=\"842\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBuilt for speed, accuracy, and convenience in daily study or professional work. \u003c\/p\u003e","brand":"Unit Calculators","offers":[{"title":"Default Title","offer_id":48892836380922,"sku":null,"price":0.0,"currency_code":"LBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1465\/9322\/files\/WhatsAppImage2026-05-15at5.39.23PM_1.jpg?v=1778856651","url":"https:\/\/unit-calculators.com\/products\/fs-991es-plus","provider":"Unit Calculators","version":"1.0","type":"link"}