Hem yarı-dışbükey hem de yarı-içbükey olan bir fonksiyon yarı-doğrusaldır.
- A function that is both quasiconvex and quasiconcave is quasilinear.
... These are the works of Aristotle, which held sway for almost 2,000 years until the ...
... So this is almost CSR, is it? ...