plural of pulmonary function test

plural of Schrödinger wave function

plural of trivial functional dependency

(mathematics) A system of iterated functions used to construct fractals

plural of Heaviside unit function

(computer science) Alternative form of partial application

plural of partial function application

(physics) A separable wavefunction times e^(iEt/ hbar), which is thus a function of only space and not time.

plural of spatial wave function

(mathematics, mathematical analysis) The alternating sum of the Dirichlet series expansion of the Riemann zeta function: 𝜂(s)=∑ₙ₌₁ ᪲(-1)ⁿ⁻¹/nˢ=1/(1ˢ)-1/(2ˢ)+1/(3ˢ)-1/(4ˢ)+⋯.