OLS Cases

Basic OLS Algorithms = 20 Cases

OLS Case 1

OLS Case 2

ZZ method - Basic OLS Case 1

U2 R’ D’ r U2 r’ D R 
or L R U' R' U L' U2 R U' R'

ZZ method - Basic OLS Case 2

U’ R U2 R D R’ U2 R D’ R’ U’ R’

OLS Case 3

OLS Case 4

ZZ method - Basic OLS Case 3

U R’ D’ r U2 r’ D R U2 R U’ R’ 
or U R U R’ U’ y’ R’ U2 R U’ R’ U’ R

ZZ method - Basic OLS Case 4

U' R U R2 D' R U2 R' D R2 U' R'

OLS Case 5

OLS Case 6

ZZ method - Basic OLS Case 5

U’ L’ U2 R U’ R’ U2 L 
or U R’ D’ R U R’ D R U’ R U’ R’

ZZ method - Basic OLS Case 6

R' D' R U' R' D R U R U' R' 
or U2 R U R’ U R’ D’ R U’ R’ D R

OLS Case 7

OLS Case 8

ZZ method - Basic OLS Case 7

y R’ D R U’ R’ D’ R 
or U D' R' D R U’ R' D' R D

ZZ method - Basic OLS Case 8

U R’ D’ R U’ R’ D R 
or U’ R’ D’ R U R’ D R

OLS Case 9

OLS Case 10

ZZ method - Basic OLS Case 9

R' U2 R U' R U' R' U R U R2 U' R
or R' U2 R U' R2 U R U' R U' R

ZZ method - Basic OLS Case 10

y’ R’ U2 R U’ R’ U’ R y R U R’

OLS Case 11

OLS Case 12

ZZ method - Basic OLS Case 11

R U' R' U2 R U R'

ZZ method - Basic OLS Case 12

R U R’ U R U R’ U2 R U’ R’ U R U R’

OLS Case 13

OLS Case 14

ZZ method - Basic OLS Case 13

R U2 R’ U’ R U2 R’ U R U2 R’ 
or U2 R U’ R’ U’ R U2 R’ U’ R U R’

ZZ method - Basic OLS Case 14

R U’ R’ U R U2 R’ U R U R’

OLS Case 15

OLS Case 16

ZZ method - Basic OLS Case 15

U’ R U’ R’ U R U2 R’ U’ R U R’

ZZ method - Basic OLS Case 16

R' U' R' U' R' U R U R

OLS Case 17

OLS Case 18

ZZ method - Basic OLS Case 17

R' D' R U R' D R2 U' R'

ZZ method - Basic OLS Case 18

U' F' R U2 R' U2 R' F R2 U R' 
R U R' U' R U R' U' R U R' U R U2 R'

OLS Case 19

OLS Case 20

ZZ method - Basic OLS Case 19

L' R U R' U' L R U2 R' U' R U R'

ZZ method - Basic OLS Case 20

U2 R U' R' U R U2 R' L' U R U' R' L

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