SC3449

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.1

2007.11.19

Http: www.silan.com.cn

Page 5 of 23

Note:

Ÿ Calculation mode directional symbol will show at the bottom of the display screen.

Ÿ General computing (COMP), standard tolerance calculation (SD) and regression calculation (REG) can be

used together with the angle unit mode.

Ÿ You should check the actual calculation and angle mode to see whether they are according with the

requirement every time before a calculation.

3. Input limit

The storage area used to memorize the calculation program can memory 79 steps. When input the 73

the cursor will change from “_”to ” ”. This indicates the enacted storage capacity area is not enough. And if you

need to input more things, please divide the calculation into two or more operation section.

4. Input error revising

Ÿ Use

or

to move the cursor to the place where you want to revise.

Ÿ Use DEL to remove the numbers or functions at the present cursor.

Ÿ Press SHIFT INS and the cursor will flicker “[ ]”, that is to say it has already enters the inserting state. In this

state, the input characters will insert the place where the present cursor is.

Ÿ Press

,

, SHIFT INS or

, the cursor will come back to the common state from the inserting state.

5. Recurrence function

Ÿ Press

or

to show the last calculation in the display interface, and you can amend the content of the

formulas to calculate over again.

Ÿ The content of the recurrence memory won’tbe cleared if you press the key AC. So you can also make use

of the last calculation result even you press the key AC.

Ÿ It will clear the recurrence memory every time when to begin a new calculation to change the calculation

state or shut off the power supply.

6. Error indicator

When the calculation error appears, press

or

and the cursor will stay where the error is.

7. Exponent display method

The calculator shows ten digits at most. When above ten digits, it will automatically use the exponent display

method. For decimal fraction, you can choose one from the two methods to appoint when to use the exponential

form. Press MODE MODE MODE 3 1 (or 2 ) to choose form NORM1or NORM2.

Ÿ NORM1

When use NORM1, for the integer above 10 digits or the decimal fraction digits above 2, it will adopt the

exponential form.

Ÿ NORM2

When use NORM2, for the integer above 10 digits or the decimal fraction digits above 9, it will adopt the

exponential form.

Ÿ All the examples in the instruction use NORM1 to denote the calculation result.

8. Answer memory

Every time you press the key

after you input the numerical value or formulas, the calculation result will keep

into the answer memory automatically. And press ANS to show the content in the answer memory.

Ÿ The answer memory can memory mantissa of 12 digits and exponent of 2 digits.