import { Exponent } from "../exponent";
import { GenericMeasure } from "../measure/genericMeasure";
import { Length, PlaneAngle } from "./quantities";
/**
 * `Math.acos` for `number` measures.
 * @param x a dimensionless value
 * @returns an angle
 */
export declare const acos: (angle: Dimensionless) => GenericMeasure<number, {
    planeAngle: "1";
}>;
/**
 * `Math.asin` for `number` measures.
 * @param x a dimensionless value
 * @returns an angle
 */
export declare const asin: (angle: Dimensionless) => GenericMeasure<number, {
    planeAngle: "1";
}>;
/**
 * `Math.atan` for `number` measures.
 * @param x a dimensionless value
 * @returns an angle
 */
export declare const atan: (angle: Dimensionless) => GenericMeasure<number, {
    planeAngle: "1";
}>;
/**
 * `Math.cos` for `number` measures.
 * @param x an angle
 * @returns a dimensionless value
 */
export declare const cos: (angle: GenericMeasure<number, {
    planeAngle: "1";
}>) => Dimensionless;
/**
 * `Math.sin` for `number` measures.
 * @param x an angle
 * @returns a dimensionless value
 */
export declare const sin: (angle: GenericMeasure<number, {
    planeAngle: "1";
}>) => Dimensionless;
/**
 * `Math.tan` for `number` measures.
 * @param x an angle
 * @returns a dimensionless value
 */
export declare const tan: (angle: GenericMeasure<number, {
    planeAngle: "1";
}>) => Dimensionless;
/**
 * `Math.atan2` for `number` measures.
 * @param x a length
 * @param y a length
 * @returns an angle
 */
export declare function atan2(y: Length, x: Length): PlaneAngle;
type Dimensionless = GenericMeasure<number, Record<never, Exponent | undefined>>;
export {};