Function addSequenceRecurrence

src/compute-engine/sequence.ts:558–568

(
  ce: ComputeEngine,
  name: string,
  variable: string,
  expr: Expression
)

/**
 * Add a recurrence relation for a single-index sequence definition.
 * e.g., from `L_n := L_{n-1} + 1`
 *
 * We store the recurrence as a LaTeX string rather than a Expression
 * because the expression may have been parsed before the symbol was declared
 * with subscriptEvaluate. Storing as LaTeX allows us to re-parse fresh when
 * creating the handler, ensuring proper binding.
 */
export function addSequenceRecurrence(
  ce: ComputeEngine,
  name: string,
  variable: string,
  expr: Expression
): void {