SC3449

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.1

2007.11.19

Http: www.silan.com.cn

Page 6 of 23

Ÿ If the calculation result is wrong (ERROR) after the above operation, the value in the answer memory will not

be updated.

2. Calculation and demonstration

Note: The key-press expression is circled by the outline border and the input number is not.

1. Basic calculation

Use COMP mode to carry out the basic calculation

Arithmetic formula

Key-press

Result vision

Example1

3×(5×10

-9

3 × ( 5 EXP

-

9 )

1.5

-08

Example2

5×(9

7

5 × ( 9

7 )

80.

Ÿ The key operation ) before the equal mark

) can be omitted.

2. Memory calculation

Independent memory

Ÿ The numerical value can be directly kept into the memory, and it can add to the numerical value in the

memory. It can also subtract the numerical value from the memory. The independent memory is convenient

for cumulating the sum.

Ÿ The memory area used by variable M is the same as that used by the independent memory.

Ÿ If you want to clear the numerical value in the independent memory, press SHIFT Mcl

or 0 STO M .

Arithmetic formula

Key-press

Result vision

Example

23

9

32

53

6

47

)45×2

90

(sum)

11

23

9 STO M

53

6 M+

45 × 2 SHIFT M-

RCL M

32.

47.

90.

-11.

Variable

Ÿ The calculator stocks 9 variables(A to F, M, X and Y) that can memory data, constants, calculation results

and other numerical values.

Ÿ Using the operation SHIFT Mcl

you can delete all the data of 9 variables.

Ÿ Using the following operation can delete the data given to some variable: 0 STO

A . The operation will

delete the data of variable A.

Arithmetic formula

Key-press

Result vision

Example

193.2÷23

8.4

193.2÷28

6.9

193.2 STO A ÷ 23

ALPHA A ÷ 28

8.4

6.9

3. Fraction calculation

Fraction calculation

Ÿ Use COMP mode to go along the fraction operation.

Ÿ When the summation of the fraction digits (integer numerator denominator semicolon) is above 10 digits,

the calculator will automatically show this numerical value in the decimal fraction form.

Arithmetic formula

Key-press

Result vision

Example 1

5

4

1

3

2

+

2

c

b

a

3

1

c

b

a

4

c

b

a

5

2_|7_|15.

Example 2

1.6

2

1

+

1

c

b

a

2

1.6

2.1