import BN from "bn.js";
/**
 * Compute exp(x) using Taylor series (12 iterations)
 * @param x - Input in WAD format
 * @returns e^x in WAD format
 */
export declare function expWad(x: BN): BN;
/**
 * Compute ln(x) using range reduction and Newton-Raphson (3 iterations)
 * @param x - Input in WAD format (must be >= WAD)
 * @returns ln(x) in WAD format
 */
export declare function lnWad(x: BN): BN;
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