Cleaned Code by Removing Location Tracking for Errors

MathPad/MPValueGroup.h

@@ -16,13 +16,7 @@
 
 @interface MPValueGroup : NSObject <MPValue>
 
-@property (nonatomic, strong) NSArray *values;
-- (void)appendValue:(id<MPValue>)value;
-- (void)insertValue:(id<MPValue>)value
-              atIndex:(NSUInteger)index;
-- (void)removeValue:(id<MPValue>)value;
-- (void)removeValueAtIndex:(NSUInteger)index;
-- (id<MPValue>)valueAtIndex:(NSUInteger)index;
+@property (readonly, nonatomic, strong) NSArray *values;
 
 @end