About NARUKAWA YASUO
About 桐朋学園
About FUJIMOTO KATSUSHIGE
About integral
About Chebyshev polynomial
About norm
About fuzzy theory
About functional
About inequality
About lattice(mathematics)
About sufficient condition
About necessary condition
About mathematical property
About economy
About social science
About evaluation test
About system evaluation
About t-Conorm
About t-norm
About Sugeno integral
About necessary and sufficient condition
About System and control theory in general
About Industrial economy
About 菅野積分
About 先生