Elliptical Barrel intersects Elliptical Cone Arc Length Calculator
 Cone Height ... z = Cone Base Axis 2A ... x = Cone Base Axis 2B ... y = Barrel Axis 2a ... x = Barrel Axis 2b ... z = Working Point on x-axis =
 Barrel Data Section Plane Height ... z = Barrel Slope at (x, z) = Radius Vector ... r = Radius Vector Angle ... θ = Barrel Eccentric Angle ... φ = Barrel Arc Length = Plan View Footprint Section through Cone y = on x-axis ... 2α = on y-axis ... 2β = Slope at (x, y) = Slope Angle at (x, y) = Radius Vector ... R = Radius Vector Angle ... Θ = Plan View Arc Length = Tangent to Ellipse = Angle to Ellipse = Side Elevation Trace Rectangular Hyperbola Side View Arc Length = Slope at (y, z) = a = b = offset on z-axis ... k = Barrel φ at k = Barrel x at k = Line on the Nappe Hip Length ... (x, y, z) = Hip Slope = Hip Slope Angle = Normal to the Nappe Common Slope Angle x = y = z = Normal slope w.r.t z-axis = Common Slope Angle = Standard Rafter Angles Footprint (Plan) = Nappe (Sheathing) = Backing Bevel = Curved Trough Data Arc Length to W.P. = Dihedral Angle at W.P. =