鉤股弦適等
Waseda University Library
ARC Early Japanese Book Portal Database
鉤股弦変化之法
神戸大学附属図書館 (国文学研究資料館)
IIIF Discovery in Japan
鈎股方円適等
Waseda University Library
ARC Early Japanese Book Portal Database
句股弦度図説
Kyoto University Library
IIIF Discovery in Japan
算法鉤股大全解
Tokyo National Museum
Integrated Collections Database of the National Museums, Japan
鈎股弦彎化之法
神戸大学附属図書館
Kobe University Library Digital Archive Special Collections
鉤股百箇条本術並解術
Chiba Prefectral Central Library
Chiba Prefectural Digital Archive
弦仕掛等書
Tokyo National Museum
Integrated Collections Database of the National Museums, Japan
規矩図（図法「勾股弦之解」）
Tokyo Metropolitan Central Library
Tokyo Metropolitan Library Edo-Tokyo Digital Collections
Koukouhenkanohou
Chiba Prefectral Central Library
Chiba Prefectural Digital Archive
鈎股変換術 . 通弦術 全
Kyushu University Collections
Kyushu University Collections
Kokougen shou nankou ippyaku gojukko houjutsu
Kyushu University Collections
Kyushu University Collections
鈎股変換術 . 通弦術 . 筭法換式注ノ序
Kyushu University Collections
Kyushu University Collections
等元
National Institute of Japanese Literature
Collectors'Seals Database
祐徳稲荷神社幣殿天井ト畫蟇股等
Saga Prefectual Library
Saga Prefectural Library Database
規矩図「三角」「勾股弦」（裏面：塀重門立面図）
Tokyo Metropolitan Central Library
Tokyo Metropolitan Library Edo-Tokyo Digital Collections
円内外三円適等
Chiba Prefectral Central Library
Chiba Prefectural Digital Archive
Sanpoukankeishiryou
Kumon Museum of Children’s Ukiyo-e
ARC Early Japanese Book Portal Database
規矩図「開平方」「股巾勾巾合ﾃ弦巾ﾄ成図」
Tokyo Metropolitan Central Library
Tokyo Metropolitan Library Edo-Tokyo Digital Collections
絵葉書｢アルバム｣祐德稻荷神社 天井ト壁画蟇股等
Fukuoka City Museum
Fukuoka City Museum Collection Database
天福元宝
Faculty of Economics, University of Tokyo
UTokyo Academic Archives Portal
天元算梯
Chiba Prefectral Central Library
Chiba Prefectural Digital Archive
天福元宝
Faculty of Economics, University of Tokyo
UTokyo Academic Archives Portal
天福元宝
Faculty of Economics, University of Tokyo
UTokyo Academic Archives Portal
Uploaded: 2026-03-26