HP 50G, Руководство пользователя

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Page 2-18
Press the down arrow key (
˜
) to trigger the clear editing cursor. The screen
now looks like this:
By using the left arrow key (
š
) you can move the cursor in the general left
direction, but stopping at each individual component of the expression. For
example, suppose that we will first will transform the expression
π
2
/2 into the
expression LN(
π
5
/3) . With the clear cursor active, as shown above, press the
left-arrow key (
š
) twice to highlight the 2 in the denominator of
π
2
/2 . Next,
press the delete key (
ƒ
) once to change the cursor into the insertion cursor.
Press
ƒ
once more to delete the 2, and then
3
to enter a 3. At this point,
the screen looks as follows:
Next, press the down arrow key (
˜
) to trigger the clear editing cursor
highlighting the 3 in the denominator of
π
2
/3 . Press the left arrow key (
š
)
once to highlight the exponent 2 in the expression
π
2
/3 . Next, press the delete
key (
ƒ
) once to change the cursor into the insertion cursor. Press
ƒ
once
more to delete the 2, and then
5
to enter a 5. Press the upper arrow key
(
—
) three times to highlight the expression
π
5
/3 . Then, type
‚¹
to
apply the LN function to this expression. The screen now looks like this:
Next, we’ll change the 5 within the parentheses to a ½ by using these
keystrokes:
šƒƒ1/2
Next, we highlight the entire expression in parentheses an insert the square root
symbol by using:
————R