export declare const PSEUDO_ZERO = 1e-8;
/**
 * Vector magnitude.
 */
export declare function vectorMagnitude(v: number[]): number;
/**
 * Ratio between two vectors.
 */
export declare function vectorsRatio(u: number[], v: number[]): number;
/**
 * Angle between two vectors.
 */
export declare function vectorsAngle(u: number[], v: number[]): number;
export declare function CB1(t: number): number;
export declare function CB2(t: number): number;
export declare function CB3(t: number): number;
export declare function CB4(t: number): number;
export declare function QB1(t: number): number;
export declare function QB2(t: number): number;
export declare function QB3(t: number): number;
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