class GSL::PolyDD

• GSL::PolyDD
• Reference
• Object

Overview

PolyDD class represents divided difference representation of polinomial

Defined in:

gsl/maths/basic/poly.cr

Constructors

• .new(xa : Array(Float64), ya : Array(Float64))

  Constructs PolyDD that have values ya at points #xa

Class Method Summary

• .new_hermite(xa : Array(Float64), ya : Array(Float64), dya : Array(Float64))

  Constructs PolyDD that have values ya at points #xa and also derivates dya

Instance Method Summary

• #dd : Slice(Float64)

  array of divided-differences.

• #eval(x)

  Evaluates polinomial value at given point

• #size

  length of divided-differences (order of polinomial+1)

• #to_taylor(xp)

  Converts to Poly that is taylor expansion of polinomial at point xp

• #xa : Slice(Float64)

  array of x points

Constructor Detail

Class Method Detail

Instance Method Detail