Equationwriter examples, 2 ©x @©y (cos) – HP 48g Graphing Calculator User Manual
Page 94
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EquationWriter Examples
At the end of each of the following examples, you can either press
fENTERl
to put the equation on the stack, or press
fi^fCLEAR
1
to clear
the display for the next example. If you do the latter, ignore the
fi^fEQUATION
) instruction at the start of each new- example.
If you make a mistake while you’re keying in an equation, press
0
to
backspace to the error, or press fr^f^LEAR) and start again.
Example:
Key in this equation;
2
2
2 + Y
+ y 5 = A - —
Step 1:
Key in the equation.
fi?|f EQUATION)
©X O 2 0 3 ® © c©
@ Y 0 2 0 3 © © S)(©
© A ( 0 ® 2 © © Y © 3
© ©
Ixaiuplc:
Key in this expression:
A'2 - 2AY
cosj
^^^^ +
■ 2N + 1
fi^( EQUATION )
© X O 2 © 0
2 ©X @©Y (cos)
2 S I ® 0 © N 0
2 © N © 1 © ©
©©Y(0 2©
.Exaiiiple:
Key in this expression:
d
S/
y
^;:2cOS^(7rA")
dyi.
7-8 The EquationWriter