/**
 * Copyright(c) 2014 ABB Switzerland Ltd.
 *
 * Math utility functions
 */
/**
 * @return true iff given argument is an integer number
 * @throws nothing
 */
export declare function isInt(n: number): boolean;
/**
 * Rounds -1.5 to -2 instead of -1
 * Rounds +1.5 to +2
 * @throws timezonecomplete.Argument.N if n is not a finite number
 */
export declare function roundSym(n: number): number;
/**
 * Stricter variant of parseFloat().
 * @param value	Input string
 * @return the float if the string is a valid float, NaN otherwise
 * @throws nothing
 */
export declare function filterFloat(value: string): number;
/**
 * Modulo function that only returns a positive result, in contrast to the % operator
 * @param value
 * @param modulo
 * @throws timezonecomplete.Argument.Value if value is not finite
 * @throws timezonecomplete.Argument.Modulo if modulo is not a finite number >= 1
 */
export declare function positiveModulo(value: number, modulo: number): number;