Symbolic CRAM computation algorithm

• Coeffs match published values

SciPy lambdify solver

C generated solver

• unrolled
• code generated
• specific sparsity pattern

ORIGEN comparison

• speed
• different values
  • mass fraction vs. atom fraction
  • same data

Pyne decay comparison

Structure of the transmutation problem

Pusa references

Forms of CRAM expression

• rational function, horner, real partial fraction, complex partial fraction, factored
• order(s) of approximation

Sanity checks

Discussion of validity of using CRAM to compute exp(-A) (eigenvalues and so on)