There is no need to remember these formulae for the tangent and normal to the ellipse. It is best to derive the equations from first principles. Examples Consider the ellipse Verify all the numerical values and information in the following two figures for = 10.0 and = 7.5. xP xP Reflective Properties of Hyperbolas Rays directed toward the focus of hyperbola are reflected at the hyperbolic mirror to the other focus of hyperbola.
There is no need to remember these formulae for the tangent and normal to the ellipse. It is best to derive the equations from first principles. Examples Consider the ellipse Verify all the numerical values and information in the following two figures for xP = 10.0 and xP = 7.5. Reflective Properties of Hyperbolas Rays directed toward the focus of hyperbola are reflected at the hyperbolic mirror to the other focus of hyperbola.
conics_02.docx