Links

The following lists sites that have full-text images of Wasan reference materials:

Tohoku University: Wasan DB: http://dbr.library.tohoku.ac.jp/infolib/meta_pub/G0000002wasan
Department of Mathematics, Kyoto University: Digital Library: http://edb.math.kyoto-u.ac.jp/library/
Ochanomizu University Library: Wasan (Japanese mathematics) Collection: http://www.lib.ocha.ac.jp/digital_wasan.html
Yamagata University Kojirakawa Library: The Sakuma collection: http://www.lib.yamagata-u.ac.jp/mainlib/rarebooks/sakuma-index.html
Chiba Prefectural Library: Boso Mathematical Library: http://www.library.pref.chiba.lg.jp/05e_library/suugaku-bunko.html
Wasan Hall (Mr. Kotera Hiroshi): Wasan Book Archive: http://www.wasan.earth.linkclub.com/archive.html

For Tokyo Sugaku Kaisha Zasshi and its successor and Tohoku Sugaku Zasshi, you may read their full text at Journal@rchive ( http://www.journalarchive.jst.go.jp/japanese/ ).

For Sugakushi Kenkyu, you can view its full-text image from the general contents ( http://www.wasan.jp/math_indexj.html ).

Wasan Hall (Mr. Kotera Hiroshi): Wasan Data Base (database of Wasan terminology): http://ucgi.wasan.jp/index.htm
Wasan Hall (Mr. Kotera Hiroshi): Wasan Chronology: http://www.wasan.jp/nenpyo/nenpyo1.html

Kyoto University Library: “The Era of Wasan” held in 2003: http://edb.kulib.kyoto-u.ac.jp/tenjikai/2003/wasan.html

Wasan Hall (Mr. Kotera Hiroshi): Geometric Formulae in Wasan: http://www.wasan.earth.linkclub.com/kosiki/kosiki.html

In addition to the above, you may find more websites provided by Wasan researchers and enthusiasts across Japan.