17Basic Calculations Chapter 2(2) Parentheses Calculation Priority SequenceExpressions enclosed inside parentheses are always given priority in a calculation.Example 1 100 – (2 + 3) ! 4Abaa-(c+d)*ewExample 2 (7 – 2) ! (8 + 5)• A multiplication sign immediately in front of an open parenthesis can be omitted.A(h-c)(i+f)w• Any closing parentheses at the end of a calculation can be omitted, no matterhow many there are.Parentheses are always closed in the operation examples presented in this manual.(3) Negative ValuesUse the - key to input negative values.Example 56 ! (–12) ÷ (–2.5)Afg*-bc/-c.fw(4) Exponential ExpressionsUse the E key to input exponents.Example (4.5 ! 1075) ! (–2.3 ! 10–79 )Ae.fEhf*-c.dE-hjwThe above shows what would appear when the exponential display range is set toNorm 1. It stands for –1.035 ! 10 –3, which is –0.001035.P.10
