Algebraic surfaces

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Revision as of 10:23, 6 January 2009 by >Mindraker (Bell)
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Introduction

This page covers another way of writing out the formulas necessary to create graphs than covered on the Parametric equations page. It may seem unnecessarily complicated at times, but as you can see, this method can provide quite complex shapes and designs.

Spindel

Spindel/Hourglass
for x = -100,100, 1 do 
for y = -100,100, 1 do 
for z = -100,100, 1 do 

if (x^2)+(y^2)-(z^2)==1 then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x/10, y/10, z/10)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Kreuz

Kreuz/Cross
for x = -10,10, 1 do 
for y = -10,10, 1 do 
for z = -10,10, 1 do 

if x*y*z==0 then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x, y, z)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Gupf

Gupf
for x = -100,100, 1 do 
for y = -100,100, 1 do 
for z = -100,100, 1 do 

if x^2+y^2+z==0  then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x, z, y)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Diabolo

Diabolo
for x = -100,100, 1 do 
for y = -100,100, 1 do 
for z = -100,100, 1 do 
if x^2==(y^2+z^2)^2  then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*1, z*1, y*1)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Sattel/Saddle

Sattel/Saddle
for x = -300,300, 1 do 
for y = -300,300, 1 do 
for z = -300,300, 1 do 

if x^2+y^2*z+z^3==0 then

p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*.1, z*.1, y*.1)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

UFO

UFO
for x = -10,10, .25 do 
for y = -10,10, .25 do 
for z = -10,10, .25 do 

if (z^2-x^2-y^2-1)==0  then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*7, z*7, y*7)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Trichter

Trichter
for x = -10,10, .25 do 
for y = -10,10, .25 do 
for z = -10,10, .25 do 

if x^2+z^3==y^2*z^2  then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*4, z*4, y*4)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Sphäre/Sphere

Sphäre/Sphere
for x = -14,14, .25 do 
for y = -14,14, .25 do 
for z = -14,14, .25 do 

if math.floor(x^2)+math.floor(y^2)+math.floor(z^2)==25  then 
p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*1.5, y*1.5, z*1.5)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end

Fanfare/horn

horn
for x = -14,14, .25 do 
for y = -14,14, .25 do 
for z = -14,14, .25 do 

if math.floor(-x^3)+math.floor(z^2)+math.floor(y^2)==0  then 

p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*7.5, y*1, z*1)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

No title

untitled
for x = -14,14, .25 do
for y = -14,14, .25 do 
for z = -14,14, .25 do 

if math.floor(x^2)+math.floor(y^2)+math.floor(z^2)==math.floor(z^4)  then 

p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*1, z*1, y*1)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Whitney

Whitney
for x = -10,10, .25 do 
for y = -10,10, .25 do 
for z = -10,10, .25 do 

if math.floor(x^2)-math.floor(y^2*z)==0  then 

p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*5, z*5, y*5)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end 

Bell

Bell
for x = -14,14, .25 do 
for y = -14,14, .25 do 
for z = -14,14, .25 do 

if math.floor(x^2)+math.floor(y^2)+math.floor(z^3)==math.floor(z^2)  then 

p = Instance.new("Part") 
p.formFactor = "Symmetric" 
p.CFrame = CFrame.new(Vector3.new(x*1, z*2, y*1)) 
p.Size = Vector3.new(1,1,1) 
p.Anchored = true 
p.BottomSurface = "Smooth" 
p.TopSurface = "Smooth" 
p.Parent = game.Workspace 
p.BrickColor = BrickColor.new(26) 
end 

end 
end 
end

See Also

Algebraic Surfaces