I don't know, specifically for free, only for the sake of God. I don't want anything from you except prayers. I will come to your house. I will teach mathematics, statistics, linear algebra, physics, numerical analysis. Any subject with equations. Before anything, send me the syllabus so I can study it and prepare for you and so I am ready and don't waste time. It's necessary to show me the syllabus. WhatsApp ( Phone number appears when clicking the contact button ) . My time is from after Maghrib until 10, that's my limit. I don't want anything from you except prayers only. I am Saudi, not a foreigner, Saudi.