Some types of Q-surfaces in a rectilinear congruence produced by circular transformations (1914)
Stokes, Claude Newton, 1890- · leaf 45
ng the right isosceles triangle LMC. Di-vide< LCM into 9 equal parts. Let CS be a line making with CL anangle of 20* . Connect S with o, then oS is the line in isometricprojection making with OX an angle corresponding to 20°. If Op is theradius of the circle cut out on the surface by the plane… … When OP x OP OQ = OQ/. Inscribe ellipse in parallelogram having PPand QQ as ax-es. This ellipse will be an isometric drawing of the circle cut outby the plane through Qo and oS making an angle of 20* with (oxz)-plane. To find divisions in the second quadrant, draw a tangentline to the ellipse in…
