/**
 * Componentwise computes the inverse squareroot of given nD vector.
 * Multi-method.
 *
 * @param o - output vector
 * @param a - input vector
 */
export declare const invSqrt: import("./api.js").MultiVecOpV<number>;
/**
 * Componentwise computes the inverse squareroot of given 2D vector.
 *
 * @param o - output vector
 * @param a - input vector
 */
export declare const invSqrt2: import("./api.js").VecOpV<number>;
/**
 * Componentwise computes the inverse squareroot of given 3D vector.
 *
 * @param o - output vector
 * @param a - input vector
 */
export declare const invSqrt3: import("./api.js").VecOpV<number>;
/**
 * Componentwise computes the inverse squareroot of given 4D vector.
 *
 * @param o - output vector
 * @param a - input vector
 */
export declare const invSqrt4: import("./api.js").VecOpV<number>;
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