import type { matrix } from "../types";
/**
 * Matrix power X ^ Y.
 *
 * Raises a square matrix X to the power of a scalar exponent Y.
 *
 * @param x The base matrix (must be square)
 * @param y The exponent (must be a scalar)
 * @returns The resulting matrix after exponentiation
 * @throws If the input is not a square matrix or the exponent is not a scalar
 *
 * @example Raise a matrix to the power of 3
 * ```ts
 * import { assertEquals } from "jsr:@std/assert";
 *
 * assertEquals(mpower([[1,1,-1],[1,-2,3],[2,3,1]], 3),
 *   [[-2, 11, -11], [11, -35, 33], [22, 33, -2]]);
 * ```
 */
export default function mpower(x: matrix, y: number): matrix;
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