3.9 Further Reading

• Finite elements.
  Johnson [19], Fletcher [13], Saad [26] §2.3

• Quadrature.
  Abramowitz [1] §25.4.29 with table 25.4, Numerical Recipes [24] §4.5

• Linear solvers.
  Software from netlib, PetSc, and Numerical Recipes [24] §2.4,
  Dahlquist [10] §6, Saad [26],