AS PRACTISED BY THE ARABS. 151 



Then ~2f | 2 — 4-f-£4-- 5 s s-= 4 -B-> and deficiency 



_4_ 

 2 



Let A = C) — 2 2 -f- 2. Then a = 2, r = 2, and assumed Root — 2f . 

 Then 2f] * = 4 -f- f -f- ^ — 5|f , and deficiency =£ Iff. 



Let A = 7 — 2 2 4- 3. Then a — 2 r = 3, and assumed Root = % 



Then 2|~j 2 = 4 -j- V s + tV = 6 "H-> an ^ deficiency — -^. 

 Let A — 8 =: 2 2 -f- 4. Then a = 2, r =z 4, and assumed Root — 24 



Then 2f j 2 — 4 4- V 6 -f ir = 7 iib and deficiency — -=l 



Let A — 10 = 3 2 + 1. Then a — 3 r — 1 and 2 « -j- 1 — 7, and 

 assumed Root — 3\. 



Then af| 2 = 9 + -f -J- T V = 9|^', and deficiency — -^. 

 Let A — 11 — 3" -f 2. Then « — 3, r = 2, and assumed Root — 3%- 



Then 3f] 2 — 9 -j- y -f w == 10 i4, and deficiency == ^. 



Let A — 1 2 — 3 2 -f 3. Then a — 3, r — 3, and assumed Root = 3-f . 

 Then 3^| 2 — 9 -f V 8 -f -xV = Hf 7 9 > and deficiency — if.. 



Let A — 13 — 3 2 + 4. Then a = 3 r — 4, and assumed Root — 3f . 



Then 5^1 2 — 9 -j- y -j- if = 12-|-£> and deficiency =a •£§-: 



q 1 



