Input line expression editor failure

[compsystems]

Hello

In the power operation, if the base is in brackets () and if you write a fraction and then place it in the history and then copy it to the input line, it no longer allows you to add operations to the fraction.

(-1/2)^2 [enter] [copy]

(|-1/2)^2 // The cursor | does not allow positioning before or after the fraction.
(-1/2|)^2

[keldor314]

You have Entry set to "Textbook" in home settings, right?

Use the up and down buttons to move the cursor between the top and bottom parts of a fraction.

[alainarasti]

This might be caused by how certain calculators or software handle input editing after an expression is copied from the history. When an operation like (-1/2)^2 is copied the system often locks the fraction into a noneditable form due to internal formatting rules. This prevents placing the cursor either inside or outside the fraction for additional edits. A potential workaround is to manually re-enter the fraction rather than copying it from the history. Alternatively make sure you’re using parentheses in a way that avoids such formatting conflicts, likr:
Write (-1/2) directly again instead of copying it.
Use a text-based input mode if available where the cursor can move freely.