/** Convert OOXML angle (60000ths of a degree) to radians */
export declare function ooxmlAngleToRadians(angle: number): number;
/** Clamp a number to [min, max] */
export declare function clamp(val: number, min: number, max: number): number;
/** Linear interpolation */
export declare function lerp(a: number, b: number, t: number): number;
/**
 * Approximate an arc with cubic Bezier curves.
 * Returns array of {x1, y1, x2, y2, x, y} control points.
 */
export declare function arcToBezier(cx: number, cy: number, rx: number, ry: number, startAngle: number, sweepAngle: number): {
    x1: number;
    y1: number;
    x2: number;
    y2: number;
    x: number;
    y: number;
}[];
//# sourceMappingURL=math-utils.d.ts.map