Hp 48g Graphing Calculator Manual do Utilizador Página 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
+y5 = 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 - 2AYcosj^^^^ +
2N + 1
fi^( EQUATION )
©XO2©0
2 ©X @©Y (cos)
2 SI® 0 ©N 0
2©N©1©©
©©Y(0 2©
.Exaiiiple: Key in this expression:
d
S/y ^;:2cOS^(7rA")
dyi.
7-8 The EquationWriter
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