Page 2-28
Next, we’ll copy the fraction 2/
√
3 from the leftmost factor in the expression,
and place it in the numerator of the argument for the LN function. Try the
following keystrokes:
˜˜šš———‚¨˜˜
‚™ššš‚¬
The resulting screen is as follows:
The functions BEGIN and END are not necessary when operating in the
Equation Writer, since we can select strings of characters by using the arrow
keys. Functions BEGIN and END are more useful when editing an expression
with the line editor. For example, let’s select the expression x+2
⋅λ⋅Δ
y from this
expression, but using the line editor within the Equation Writer, as follows:
‚—A
The line editor screen will look like this (quotes shown only if calculator in RPN
mode):
To select the sub-expression of interest, use:
™™™™™™™™‚¢
™™™™™™™™™™‚¤
The screen shows the required sub-expression highlighted:
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