Function parsePrefixedUnit

src/compute-engine/numerics/unit-data.ts:242–266

* Try to split `symbol` into an SI prefix + a prefixable base unit. * * Strategy: try a 2-character prefix first (e.g. "da"), then 1-character. * The remaining suffix must be a member of `PREFIXABLE_UNITS`. * * Returns `{ prefix, prefixScale, baseEntry }` or `null`.

(
  symbol: string
)

  );
}

export function isDimensionless(dim: DimensionVector): boolean {
  return (
    dim[0] === 0 &&
    dim[1] === 0 &&
    dim[2] === 0 &&
    dim[3] === 0 &&
    dim[4] === 0 &&
    dim[5] === 0 &&
    dim[6] === 0 &&
    dim[7] === 0
  );
}

/**
 * Try to split `symbol` into an SI prefix + a prefixable base unit.
 *
 * Strategy: try a 2-character prefix first (e.g. "da"), then 1-character.
 * The remaining suffix must be a member of `PREFIXABLE_UNITS`.
 *
 * Returns `{ prefix, prefixScale, baseEntry }` or `null`.
 */
function parsePrefixedUnit(
  symbol: string
): { prefixScale: number; baseEntry: UnitEntry } | null {
  // Try 2-char prefix first (only "da" currently, but future-proof)
  if (symbol.length > 2) {
    const p2 = symbol.slice(0, 2);