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Function Reference

First-order differences

whittaker1(input::Vector{Float64}, weights::Vector{T <: Number}, lambda::Float64) -> z::Vector{Float64}
whittaker1!(input::Vector{Float64}, weights::Vector{T <: Number}, lambda::Float64)

Second-order differences

whittaker2(input::Vector{Float64}, weights::Vector{T <: Number}, lambda::Float64) -> z::Vector{Float64}
whittaker2!(input::Vector{Float64}, weights::Vector{T <: Number}, lambda::Float64)