import type { FunctionDefinition } from '../../definition_types';
/**
 * Returns the arccosine of `n` as an angle, expressed in radians.
 *
 * @example
 * ROW a=.9
 * | EVAL acos=ACOS(a)
 */
declare const definition: FunctionDefinition;
export default definition;
//# sourceMappingURL=acos.d.ts.map