Function decimalExponent

src/big-decimal/transcendentals.ts:197–199

* Decimal exponent of a finite, non-zero value: |x| ∈ [10^e, 10^(e+1)). * * The fixed-point bridge (`toFixedPoint`) is an *absolute*-precision grid: * values below 10^-workingPrec truncate to 0n and values far from 1 lose * leading digits. Every transcendental that wants full *relative* precisio

(x: BigDecimal)

 * in the working precision) before crossing the bridge.
 */
function decimalExponent(x: BigDecimal): number {
  return x.exponent + x._digitCount() - 1;
}

/**
 * Number of leading decimal digits lost to cancellation for an O(1)