A Number of Input Characters (Bytes)

As you input a mathematical expression, it is stored in memory called an “input area,” which has a capacity of 127 bytes. This means you can input up to 127 bytes for a single mathematical expression.

When linear display is selected as the display format, each function normally uses one or two bytes of memory. With the natural display format, each function use four or more bytes of memory. For more information, see “Inputting Calculation Expressions Using Natural Display” on page 17.

Normally, the cursor that indicates the current input location on the display is either a flashing vertical bar () or horizontal bar ( ). When the remaining capacity of the input area is 10 bytes or less, the cursor changes to a flashing box (k).

If this happens, stop input of the current expression at some suitable location and calculate its result.

k Using Natural Display

While natural display is selected as the display format (page 11), you can input fractions and some scientific functions just as they are written.

A Natural Display Basics

The table below lists the types of scientific functions that you can input using natural display format.

•The *1 column shows the number of bytes of memory used up by each scientific function. See “Number of Input Characters (Bytes)” (page 16) for more information.

•For information about the *2 column, see “Using Values and Expressions as Arguments” (page 18).

Scientific Functions that Support Natural Display

Function

Key Operation

*1

*2

 

 

 

 

Improper Fraction

'

9

Yes

 

 

 

 

Mixed Fraction1'(()

14

No

 

 

 

 

log(a,b)z – {MATH}c7(logab)

7

Yes

 

 

 

 

10^x1l($)

4

Yes

e^x1i(%)

4

Yes

Square Root (')

!

4

Yes

Cube Root (3')1((#)

9

Yes

 

 

 

 

Square

x

4

No

 

 

 

 

Reciprocal1)(x–1)

5

No

Power

6

4

Yes

Power Root16(")

9

Yes

Absolute Value (Abs)z – {MATH}c1(Abs)

4

Yes

Integralz – {MATH}1(∫dX)

8

Yes

E-16