Quasilinear

Template:Sister project 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; see Partial differential equation#Linear and nonlinear equations