class_docstr: Represents a rational plus or minus some amount
  of arbitrary small deltas.
class_docstr_tok: ["Represents","a","rational","plus","or","minus","some","amount","of","arbitrary","small","deltas","."]
code: def __init__(self, rational, delta):
      self.value = (rational, delta)
  
imports: from sympy.solvers.solveset import linear_eq_to_matrix
  from sympy.matrices.dense import eye
  from sympy.assumptions import Predicate
  from sympy.assumptions.assume import AppliedPredicate
  from sympy.assumptions.ask import Q
  from sympy.core import Dummy
  from sympy.core.mul import Mul
  from sympy.core.add import Add
  from sympy.core.relational import Eq, Ne
  from sympy.core.sympify import sympify
  from sympy.core.singleton import S
  from sympy.core.numbers import Rational, oo
  from sympy.matrices.dense import Matrix
label_desc: Use image node_id 1 to create a new LRARational object  with example: obj = LRARational(rational, delta)