JFРRO

Welcome to JFРRO.
If you have any questions, please feel free to contact us and give us feedback. 











































































































































































































































This app is a visualization tool designed for geometry learning and teaching. Users can input any point and line, and the system will automatically calculate the foot of the perpendicular and the projection position from the point to the line, and dynamically display the geometric relationship through graphics to intuitively understand the projection principle. It supports coordinate input, image export and history recording functions, and is suitable for teacher classroom demonstrations, student homework assistance and independent practice. The interface is simple and the interaction is smooth, making it an ideal auxiliary tool for learning projective geometry.