See Also: Seki Takakazu(encyclopedia)

unsuitable (iou) and Seki Takakazu (sh)


unsuitable (iou)



unsuitable adjective. L16.
[from UN-1 + SUITABLE.]
Not suitable; esp. not appropriate to or fitted for a person, thing, purpose, etc.
B. Lopez Leather boots..were completely unsuitable as arctic footwear. A. Lurie It was still believed in..progressive circles that fairy tales were unsuitable for children.
unsuita'bility noun E19.
unsuitableness noun L16.
unsuitably adverb E17.

Seki Takakazu (sh)




also called Seki Kowa

born งใ 1640, Fujioka, Japan
died Oct. 24, 1708, Edo

the most important figure of the wasan ("Japanese calculation") tradition that flourished from the early 17th century until the opening of Japan to the West in the mid-19th century.

He was adopted at an early age by Seki Gorozaemon, a samurai official with the Bureau of Supply in Edo, to carry on the Seki family name. He assumed various positions as an examiner of accounts for the lord of Kofu, Tokugawa Tsunashige (until 1678), and then his son, the future shogun Tokugawa Ienobu (see Tokugawa period). Seki's most productive research was in algebra, a field in which he created powerful new tools and provided many definitive solutions. He was instrumental in recovering mathematical knowledge from ancient Chinese sources. He substituted a tabular notational system for the cumbersome Chinese method of counting rods, thereby simplifying the handling of equations with more than one unknown.