Quasilinear

Quasilinear may refer to:


 * Quasilinear function, a function that is both quasiconvex and quasiconcave
 * Quasilinear utility, an economic utility function linear in one argument
 * In complexity theory and mathematics, quasilinear time O(n (log n)k), or sometimes more specifically O(n log n)
 * Quasilinear equation, a type of differential equation where the coefficient(s) of the highest order derivative(s) of the unknown function do not depend on highest order derivative(s)