/**
 * A dense N-dimensional vector backed by a Float64Array.
 *
 * CPU-side math in Holotope uses Float64 as the source of truth; conversion
 * to Float32 happens only at the rendering boundary (see the projection
 * module and renderer adapters).
 *
 * Mutating methods operate in place and return `this`, mirroring three.js
 * ergonomics. Use `clone()` when a copy is needed.
 */
export declare class VecN {
    readonly data: Float64Array;
    constructor(dim: number);
    constructor(values: ArrayLike<number>);
    get dim(): number;
    static zero(dim: number): VecN;
    /** The i-th standard basis vector of R^dim. */
    static basis(dim: number, i: number): VecN;
    clone(): VecN;
    copy(v: VecN): this;
    add(v: VecN): this;
    sub(v: VecN): this;
    multiplyScalar(s: number): this;
    dot(v: VecN): number;
    lengthSq(): number;
    length(): number;
    distanceTo(v: VecN): number;
    normalize(): this;
    equalsApprox(v: VecN, epsilon?: number): boolean;
    toArray(): number[];
}
export declare function assertSameDim(a: number, b: number): void;
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