Improved graph labels in 1.2.1
A minor update (version 1.2.1) has just made it to the App Store.
Now if graph axis formulas have comments (text following a single quote), they will be used for axis labels instead of the whole formula. If a comment is not present, the formula will still be used as the label.
There are also some minor changes to iterate, solver and optimizer to improve behaviour for nested operations.
