| CURVILINEAR-E.- Level: intermediate; Language: English Easy Viewing Plane Analytic Geometry, The best way of really learning while solving problems from the most simple up to for example finding the line-equations of the heights of a triangle, or the equation of the line through the intersections of two circles, Or the extended equation of the circle passing by three given points. Admits two types of input: either mouse or keyboard Curvilinear is intuitively easy to use. |