import { _NaN, NEGATIVE_INFINITY, POSITIVE_INFINITY } from '../const/value';
import StrNumber from './StrNumber';
/**
 * 判断数值是否是无限的
 */
export declare function _isInfinite(value: StrNumberType): value is typeof NEGATIVE_INFINITY | typeof POSITIVE_INFINITY;
/**
 * 判断数值是否是有限的
 */
export declare function _isFinite(value: StrNumberType): value is string;
/**
 * 判断数值是否是NaN
 */
export declare function _isNaN(value: StrNumberType): value is typeof _NaN;
/**
 * 判断是否是StrNumber类型
 */
export declare function isStrNumber(value: unknown): value is StrNumber;
/**
 * 将科学计数法转换为字符数字
 */
export declare function formatScientificNotationNumber(value: StrNumberType): StrNumberValue;
/**
 * 将科学计数法还原为数字
 */
export declare function scientificNotation2Number(val: string, e: number): StrNumberValue;
/**
 * 取绝对值
 */
export declare function abs(value: StrNumberType): StrNumberValue;
/**
 * 判断是否为负数
 */
export declare function isNegativeNumber(value: StrNumberType): boolean;
/**
 * 判断A是否小于B
 */
export declare function aIsLessThanB(a: StrNumberType, b: StrNumberType): boolean;
/**
 * 判断A是否等于B
 */
export declare function aIsEqualToB(a: StrNumberType, b: StrNumberType): boolean;
/**
 * 判断A是否大于B
 */
export declare function aIsMoreThanB(a: StrNumberType, b: StrNumberType): boolean;