2-2-6

Basic Calculations

Calculation Modes

The Main application has a number of different modes, as described under “Using Main Application Modes” on page 2-1-4. The display format of calculation results depends on the currently selected Main application mode. This section tells you which mode you need to use for each type of calculation, and explains the differences between the calculation results produced by each mode.

• All of the following calculation examples are shown using the Algebra mode only.

kStandard Mode and Decimal Mode

The Standard mode displays calculation results in mathematical expression format whenever possible, while the decimal mode converts calculation results to a decimal form. When the Decimal mode is selected, you can control the use of exponential notation with the [Number Format] setting on the Basic Format dialog box (page 1-9-5).

uExamples of Decimal mode and Standard mode result displays

Expression

Decimal Mode Result

Standard Mode Result

 

 

 

 

 

 

 

50 ÷ 4 = 12.5

12.5

 

25

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

100 ÷ 6 = 16.6666666...

16.66666667

 

50

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

2 + 2 = 3.414213562...

3.414213562

2 + 2

 

 

 

 

 

 

 

 

 

3.52 ÷ 3 + 2.5 = 6.583333333...

6.583333333

 

79

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

π = 3.1415926535...

3.141592654

 

 

π

 

 

 

 

 

 

 

sin (2.1π) ⋅ 5 = 1.5450849718...

1.545084972

 

5 · ( 5 − 1 )

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•The Decimal mode results in the above table show what would appear on the display when “Normal 1” is selected for the [Number Format] setting on the Basic Format dialog box.

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