x^2/(1/4 (L^2 - α^2 - β^2 - γ^2)) + y^2/(1/4 (L^2 - α^2 - β^2 - γ^2)) + (z - (α^2 + β^2 + γ^2)^(1/2)/2)^2/L^2/4 = 1

그래픽

Step