LAC09 UNIT2 MrG 2013.0531

3099 days ago by LAC2013

#7a) Conics var('y') y=solve(9*x^2+4*y^2-18*x+16*y-11==0,y) plot([y[0].rhs(),y[1].rhs()],-1,3,aspect_ratio=1,color='magenta') 
       
#7c) Polar 9*x^2+12*x*y+5*y^2-36==0 var('r,t') r=solve(9*r^2*cos(t)^2+12*r*cos(t)*r*sin(t)+5*r^2*sin(t)^2-36==0,r) parametric_plot((r[1].rhs()*cos(t),r[1].rhs()*sin(t)),(t,0,2*pi))