//
//  MPExpressionElement.h
//  MathPad
//
//  Created by Kim Wittenburg on 10.08.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//

@import Foundation;

@protocol MPExpressionElement <NSObject, NSCopying, NSCoding>

- (BOOL)isString;
- (BOOL)isFunction;

- (NSUInteger)length;

- (double)doubleValue;
- (float)floatValue;
- (int)intValue;
- (NSInteger)integerValue;
- (long long)longLongValue;

@end