import type { LearningCurveInput, LearningCurveResult } from './types.js';
/**
 * Learning Curve (Wright's Law)
 *
 * @formula
 *   b = ln(learningRate) / ln(2)
 *   Unit model:       unitTime = firstUnitTime × unitNumber^b
 *   Cumulative model: cumulativeAverageTime = firstUnitTime × unitNumber^b
 *   cumulativeTotalTime = cumulativeAverageTime × unitNumber
 *
 * @reference Wright, T.P. (1936). "Factors Affecting the Cost of Airplanes".
 *            Journal of the Aeronautical Sciences, 3(4), 122-128.
 *
 * @throws {RangeError} First unit time must be a positive number
 * @throws {RangeError} Learning rate must be between 0 and 1 (exclusive)
 * @throws {RangeError} Unit number must be a positive integer
 */
export declare function learningCurve(input: LearningCurveInput): LearningCurveResult;
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