Hiketa Castle

Hiketa Castle (引田城, Hiketa-jō) is the name for the earthly remains of a castle structure in Kagawa Prefecture, Japan.[1][2][3] The castle was demolished by Tokugawa shogunate`s one country one castle rule in 1615.

Hiketa Castle
引田城
Hiketa, Kagawa Prefecture, Japan
TypeHirayama style castle
Site information
OwnerMiyoshi clan
Conditionruins
Site history
BuiltMuromachi period
Built byUnknown
MaterialsStone walls
Demolished1615
EventsBattle of Hiketa
Garrison information
Past
commanders		Sengoku Hidehisa, Ikoma Chikamasa

Current

The castle　was listed as one of　the Continued Top 100 Japanese Castles in 2017.[4]

gollark: you PENGUINS.
gollark: HAS YOUR NOSE EXPLODED?
gollark: ```haskellimport Data.Listimport Data.Bits fib :: Int -> Integerfib n = snd . foldl_ fib_ (1, 0) . dropWhile not $ [testBit n k | k <- let s = bitSize n in [s-1,s-2..0]] where fib_ (f, g) p | p = (f*(f+2*g), ss) | otherwise = (ss, g*(2*f-g)) where ss = f*f+g*g foldl_ = foldl' -- '```
gollark: import Data.Listimport Data.Bits fib :: Int -> Integerfib n = snd . foldl_ fib_ (1, 0) . dropWhile not $ [testBit n k | k <- let s = bitSize n in [s-1,s-2..0]] where fib_ (f, g) p | p = (f*(f+2*g), ss) | otherwise = (ss, g*(2*f-g)) where ss = f*f+g*g foldl_ = foldl' -- '
gollark: 3.1 Using 2x2 matricesThe argument of iterateabove is a linear transformation, so we can represent it as matrix and compute the nth power of this matrix with O(log n) multiplications and additions.For example, using the simple matrix implementation in Prelude extensions,fib n = head (apply (Matrix [[0,1], [1,1]] ^ n) [0,1])

References
  1. "引田城" (in Japanese). 香川県観光協会. Retrieved 25 July 2019.
  2. "引田城" (in Japanese). 攻城団. Retrieved 25 July 2019.
  3. "引田城「続日本100名城」に選定されました" (in Japanese). 東かがわ旅ナビ. Retrieved 25 July 2019.
  4. "続日本100名城" (in Japanese). 日本城郭協会. Retrieved 25 July 2019.

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