Reorganized File Structure

Added Documentation

MathKit/MPParsedExpression.m

@@ -0,0 +1,26 @@
+//
+//  MPParsedExpression.m
+//  MathPad
+//
+//  Created by Kim Wittenburg on 14.11.14.
+//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
+//
+
+#import "MPParsedExpression.h"
+
+#import "MPToken.h"
+
+#import "MPTerm.h"
+
+NSString *const MPMathKitErrorDomain = @"MPMathKitErrorDomain";
+NSString *const MPPathToExpressionKey = @"MPPathToExpressionKey";
+NSString *const MPErrorRangeKey = @"MPErrorRangeKey";
+
+@implementation MPParsedExpression
+
+- (NSDecimalNumber *)evaluate:(NSError *__autoreleasing *)error
+{
+    return [self.term evaluate:error];
+}
+
+@end