Hi,

I want to draw a profile of compound parabolic concentrator using following equations;

x = R*(sin(ϕ)-M(ϕ)*cos(ϕ))

y = -R*(cos(ϕ)+M(ϕ)*sin(ϕ))

where      R=50

            M(ϕ)= ϕ  for 0≤ ϕ ≤ 2π/3

and      M(ϕ)= (π/2+π/6+ϕ-cos(ϕ-π/6))/(1+sin(ϕ-π/6)    for 2π/3 ≤ ϕ ≤ 4π/3

Can anyone help me to draw the profile using equation driven curve option in Solidworks?