HP 50g User Manual page 77

Editing arithmetic expressions
We will show some of the editing features in the Equation Writer as an exercise.
We start by entering the following expression used in the previous exercises:
And will use the editing features of the Equation Editor to transform it into the
following expression:
In the previous exercises we used the arrow keys to highlight sub-expressions for
evaluation. In this case, we will use them to trigger a special editing cursor.
After you have finished entering the original expression, the typing cursor (a left-
pointing arrow) will be located to the right of the 3 in the denominator of the
second fraction as shown here:
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