Function sub

src/compute-engine/interval/arithmetic.ts:36–44

(
  a: Interval | IntervalResult,
  b: Interval | IntervalResult
)

}

/**
 * Subtract two intervals (or IntervalResults).
 *
 * [a, b] - [c, d] = [a - d, b - c]
 *
 * Subtraction is always defined and produces a valid interval.
 * If inputs are IntervalResults, propagates errors (empty, entire, singular).
 */
function subRaw(
  a: Interval | IntervalResult,
  b: Interval | IntervalResult
): IntervalResult {