HP 49g+, Руководство пользователя

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in “textbook” style instead of a line-entry style. Thus, when a division sign
(i.e.,
/
) is entered in the Equation Writer, a fraction is generated and the
cursor placed in the numerator. To move to the denominator you must use the
down arrow key. For example, try the following keystrokes in the Equation
Writer screen:
5/5+2
The result is the expression
The cursor is shown as a left-facing key. The cursor indicates the current
edition location. Typing a character, function name, or operation will enter
the corresponding character or characters in the cursor location. For example,
for the cursor in the location indicated above, type now:
*„Ü5+1/3
The edited expression looks as follows:
Suppose that you want to replace the quantity between parentheses in the
denominator (i.e., 5+1/3) with (5+
π 2
/2). First, we use the delete key (
ƒ
)
delete the current 1/3 expression, and then we replace that fraction with
π 2
/2,
as follows:
ƒƒƒ„ìQ2
When we hit this point the screen looks as follows:
In order to insert the denominator 2 in the expression, we need to highlight
the entire
π 2
expression. We do this by pressing the right arrow key (
™
)
once. At that point, we enter the following keystrokes:
/2