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ALG: Summary C-5
If you were to key in , the calculator would
calculate the result, -107.6471. However, that’s not what you want. To delay the
division until you’ve subtracted 12 from 85, use parentheses:
You can omit the multiplication sign (×) before a left parenthesis. Implied
multiplication is not available in Equation mode. For example, the expression 2 × (5
– 4) can be entered as 4, without the key inserted between 2
and the left parenthesis.
Exponential and Logarithmic Functions
Keys: Display: Description:
4
No calculation is done.
Õ _
Calculates 85 − 12.
_
Calculates 30/73.
Calculates 30/(85 − 12)
× 9.
To Calculate: Press: Display:
Natural logarithm (base e)
Common logarithm (base 10)
Natural exponential
Common exponential
(antilogarithm)