[1] In 1719, Takebe's new map of Japan was completed; and the work was highly valued for its quality and detail.
[1] Shōgun Yoshimune honored Takebe with rank and successively better positions in the shogunate.
Takebe played a critical role in the development of the Enri (円理, "circle principle") - a crude analogon to the western calculus.
[6] In the context of its 50th anniversary celebrations, the Mathematical Society of Japan established the Takebe Prize and the Takebe Prizes for the encouragement of young people who show promise as mathematicians.
[4] In a statistical overview derived from writings by and about Takebe Kenko, OCLC/WorldCat encompasses roughly 10+ works in 10+ publications in 3 languages and 10+ library holdings.