/**
 * High-Precision Math Primitives for Vedic Astrology
 *
 * All planetary longitude, Ayanamsa, and divisional chart arithmetic
 * MUST flow through these functions. Native JS Number is only permitted
 * at WASM/external API boundaries.
 *
 * Precision: 34 significant digits (exceeds IEEE-754 double by ~18 digits).
 * Rounding:  ROUND_HALF_EVEN (banker's rounding — minimises statistical bias).
 */
import { Decimal } from 'decimal.js';
export { Decimal };
export declare const D360: Decimal;
export declare const D180: Decimal;
export declare const D90: Decimal;
export declare const D30: Decimal;
export declare const D27: Decimal;
export declare const D12: Decimal;
export declare const D6: Decimal;
export declare const D0: Decimal;
export declare const D1: Decimal;
/** Exact Nakshatra span: 360/27 = 13.333...° */
export declare const NAKSHATRA_SPAN_D: Decimal;
/** Nakshatra span as number (display only — do NOT use in calculations). */
export declare const NAKSHATRA_SPAN_N: number;
/** Dasha year: Tropical Year = 365.242189623 days (pyjhora standard). */
export declare const DASHA_YEAR_DAYS: Decimal;
/** Dasha year in milliseconds. */
export declare const DASHA_YEAR_MS: Decimal;
/** Normalise a Decimal angle to [0, 360). Handles negatives and values > 360. */
export declare function normalize360D(angle: Decimal): Decimal;
/** Normalise a number angle to [0, 360) via Decimal — eliminates IEEE-754 drift. */
export declare function normalize360N(angle: number): number;
/** Shortest arc between two angles (always ≥ 0, ≤ 180). */
export declare function shortestArcD(a: Decimal, b: Decimal): Decimal;
/**
 * Degrees-Minutes-Seconds → Decimal degrees.
 * Sign is inferred from the first non-zero signed component.
 */
export declare function dmsToDecimalD(d: number, m: number, s: number): Decimal;
/**
 * Decimal degrees → { d, m, s }.
 * `s` is returned as a Decimal to preserve sub-arc-second resolution.
 */
export declare function decimalToDmsD(deg: Decimal): {
    d: number;
    m: number;
    s: Decimal;
};
/**
 * Midpoint of two angles on a circle — always takes the shorter arc.
 * Correctly handles the 350°/10° wraparound.
 */
export declare function midpointD(a: Decimal, b: Decimal): Decimal;
/** Construct a Decimal from number or string. Alias: keeps calling code brief. */
export declare function D(value: number | string): Decimal;
/** Convert Decimal to number at an output/API boundary. */
export declare function toNum(d: Decimal): number;