/**
 * Common utilities
 */
export declare const EPSILON = 0.000001;
export declare const DEG2RAD: number;
export declare const RAD2DEG: number;
/**
 * Symmetric round
 * see https://www.npmjs.com/package/round-half-up-symmetric#user-content-detailed-background
 */
export declare function round(a: number): number;
export type AngleOrder = 'xyz' | 'xzy' | 'yxz' | 'yzx' | 'zxy' | 'zyx';
export declare const DEFAULT_ANGLE_ORDER: AngleOrder;
export declare function vecToString(v: readonly number[], fractionDigits?: number): string;
export declare function createMatToStringFunction(col: number, row: number): (m: readonly number[], fractionDigits?: number) => string;
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