export declare function sanitizeDegreesDouble(degrees: number): number;
export declare class MathUtils {
    /** The signum function. */
    static signum(num: number): number;
    /** The linear interpolation function. */
    static lerp(start: number, stop: number, amount: number): number;
    /** Clamps an integer between two integers. */
    static clampInt(min: number, max: number, input: number): number;
    /** Clamps a number between two floating-point numbers. */
    static clampDouble(min: number, max: number, input: number): number;
    /** Sanitizes a degree measure as an integer. */
    static sanitizeDegreesInt(degrees: number): number;
    /** Sanitizes a degree measure as a floating-point number. */
    static sanitizeDegreesDouble(degrees: number): number;
    /** Sign of direction change needed to travel from one angle to another. */
    static rotationDirection(from: number, to: number): number;
    /** Distance of two points on a circle, represented using degrees. */
    static differenceDegrees(a: number, b: number): number;
    /** Multiplies a 1x3 row vector with a 3x3 matrix. */
    static matrixMultiply(row: number[], matrix: number[][]): number[];
}
export declare class ColorUtils {
    private static readonly _srgbToXyz;
    private static readonly _xyzToSrgb;
    private static readonly _whitePointD65;
    static argbFromRgb(red: number, green: number, blue: number): number;
    static argbFromLinrgb(linrgb: number[]): number;
    static alphaFromArgb(argb: number): number;
    static redFromArgb(argb: number): number;
    static greenFromArgb(argb: number): number;
    static blueFromArgb(argb: number): number;
    static isOpaque(argb: number): boolean;
    static argbFromXyz(x: number, y: number, z: number): number;
    static xyzFromArgb(argb: number): number[];
    static argbFromLab(l: number, a: number, b: number): number;
    static labFromArgb(argb: number): number[];
    static argbFromLstar(lstar: number): number;
    static lstarFromArgb(argb: number): number;
    static yFromLstar(lstar: number): number;
    static lstarFromY(y: number): number;
    static linearized(rgbComponent: number): number;
    static delinearized(rgbComponent: number): number;
    static whitePointD65(): number[];
    private static _labF;
    private static _labInvf;
}
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