How to Use Values From a Struct in Interface Builder
struct formula {
    NSString *FormulaName;
    NSString *FormulaContent;
};

struct formula AreaOfSquare;
AreaOfSquare.FormulaName = @"Area Of a Square";
AreaOfSquare.FormulaContent = @"A = lw";

struct formula AreaOfCirlce;
AreaOfCircle.FormulaName = @"Area Of a Circle";
AreaOfCircle.FormulaContent = @"A = 3.14*r*r";

IBOutlet UILabel* titleLabel;

titleLabel.text= AreaOfSquare.FormulaName;