HP F2226A - 48GII Graphic Calculator User Manual page 81

This expression does not fit in the Equation Writer screen. We can see the
entire expression by using a smaller-size font. Press the @BIG C soft menu
key to get:
Even with the larger-size font, it is possible to navigate through the entire
expression by using the clear editing cursor. Try the following keystroke
sequence: C˜˜˜˜, to set the clear editing cursor atop the factor
3 in the first term of the numerator. Then, press the right arrow key, ™, to
navigate through the expression.
Simplifying an expression
Press the @BIG C soft menu key to get the screen to look as in the previous
figure (see above). Now, press the @SIMP C soft menu key, to see if it is
possible to simplify this expression as it is shown in the Equation Writer. The
result is the following screen:
θ
3
This screen shows the argument of the SIN function, namely, ,
LN (θ )
e
3
transformed into . This may not seem like a simplification, but it is in
the sense that the cubic root function has been replaced by the inverse
functions exp-LN.
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