175
Appendix B
Algebraic Mode (ALG)
To select algebraic mode, press f[. When the calculator is in algebraic
mode, the ALG status indicator is lit.
Simple Arithmetic calculations in ALG mode
To calculate 21.1 + 23.8:
Once a calculation has been completed:
z pressing another digit key starts a new calculation, or
z pressing an operator key continues the calculation.
You can also do long calculations without pressing } after each intermediate
calculation: just press it at the end. The operators perform from left to right, in
the order you enter them.
Keying in Negative Numbers (Þ)
The Þ key changes the sign of a number.
z To key in a negative number, type that number and then press Þ.
z To change the sign of an already displayed number (it must be the
rightmost number), press Þ.
Keystrokes (ALG mode) Display
21.1+
21.10
23.8
23.80
}
44.90
} completes the calculation.
Keystrokes (ALG mode) Display
77.35-
77.35
90.89}
–13.54
} completes the calculation.
65gr§12}
96.75
New calculation:
z3.5}
27.64
Calculates 96.75 ÷ 3.5
Keystrokes (ALG mode) Display
75Þ
–75
Changes the sign of 75
§7.1}
–532.50
Multiplies –75 by 7.1
65 12×
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