🌐EnglishEnglishDeutschEspañolFrançaisالعربية中文EntityQ4724471· pop 9· linked from 104 articlesAlhazen's problemmathematical problem in geometrical opticsConnectionshyperbolaEntitycurved mirrorEntityCategoriesGeometrical opticsIbn al-HaythamMathematical problemsMathematics in the medieval Islamic worldPtolemyReflection (mathematics)