Yoriyuki ARIMA, lord of the Kurume Domain who learned arithmetic of the Seki school, revealed the mathematical secrets taught in Seki school in his "Shuki Sanpo," published in 1769, and contributed greatly to the advancement of wasan culture.
しかし、関流算術を学んだ久留米藩主・有馬頼ゆきは1769年に出版した著書『拾璣算法』において関流の秘伝を公開し、和算文化の向上に大きな貢献を果たした。