2-4-1

Function Calculations

2-4 Function Calculations

This section explains how to perform function calculations in the Main application work area.

•Most of the operators and functions described in this section are input from the 9

(math) and ( (catalog) keyboard. The actual keyboard you should use to perform the sample operations presented here is the one indicated by a  mark or by button names* (“TRIG”, “MATH”, “Cmd”, etc.) in one of the columns titled “Use this keyboard”.

*For more information about these buttons, see “Advanced Soft Keyboard Operations” (page 1-6-8).

•You do not need to input the closing parenthesis that comes immediately before an Ekey

operation. All of the calculation examples in this section omit the closing parentheses before E.

The following example calculations are all performed using the Decimal mode. Using the Standard mode causes results to be displayed as fractions. For details about the Decimal mode and Standard mode, see “Status Bar Mode Indicators” on page 2-1-4.

kAngle Conversion (°, r)

The first two examples below use “Degree” (indicated by “Deg” in the status bar) as the angle unit setting. The final example uses “Radian” (indicated by “Rad” in the status bar) as the angle unit setting. Note that using the wrong angle unit setting will make it impossible to produce correct calculation results.

uTo change the angle unit setting

(1)On the Omenu, tap [Settings], [Setup], and then [Basic Format].

(2)Tap the [Common] tab.

(3)Tap the [Angle] down arrow button, and then select [Degree] or [Radian].

For more information about this operation, see “14-3 Setup Menu Settings”.

Problem

Use this keyboard:

 

Operation

 

 

 

 

mth

abc

cat

2D

 

 

 

 

 

 

 

 

Convert 4.25 radians to

TRIG

MATH

Cmd

 

4.25 Rw

degrees.

 

 

 

 

 

= 243.5070629

 

 

 

 

 

 

 

 

 

 

 

47.3° + 82.5rad = 4774.20181°

TRIG

MATH

Cmd

 

47.3 +82.5 Rw

 

 

 

 

 

 

How many radians is

TRIG

MATH

Cmd

 

Change the [Angle] setting

243.5070629°?

 

 

 

 

to “Radian”, and then input

= 4.249999999

 

 

 

 

243.5070629 *w.

 

 

 

 

 

 

20050501