User`s guide

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E-6

Inputting Expressions and Values

4 × sin30 × (30 + 10 × 3) = 120 v

4 *s 30 *( 30 + 10 * 3 )=

Note: • The memory area used for calculation input can hold 79

“steps”. One step is taken up each time you press a number key or

arithmetic operator key ( +, -, *, /). A 1 or S key operation

does not take up a step, so inputting 1^(

'), for example,

takes up only one step. • Whenever you input the 73rd step of any

calculation, the cursor changes from “_” to “ k” to let you know memory

is running low.

Calculation Priority Sequence

When the priority of two expressions is the same, the calculation is

performed from left to right.

1st

Function with parentheses: Pol (

x , y ), Rec ( r ,  ),

differentials (

d/dx ), integrations ( ∫ dx ), normal distribution

(P ( , Q ( , R ( )

2nd

Type A functions: With these functions, the value is

entered and then the function key is pressed. (

, x

−1

x !, ° ’ ”, m, m

, m

, n, ' t , °,

, engineering symbols, metric

conversions *) (*fx-570MS/991MS only)

3rd

Powers and roots: ^(

4th Fractions

5th

Implied multiplication of π ,

e (natural logarithm base),

memory name, or variable name: 2 π , 3

e , 5A, π A, etc.

6th

Type B functions: With these functions, the function key is

pressed and then the value is entered. ( ',

', log, ln, e

, sin, cos, tan, sin

−1

, cos

−1

, tan

−1

, sinh, cosh, tanh, sinh

−1

cosh

−1

, tanh

−1

, (−), d, h, b, o, Neg, Not, Det *, Trn *, arg, Abs,

Conjg) (*fx-570MS/991MS only)

7th

Implied multiplication of Type B functions: 2 '3, Alog2, etc.

8th

Permutation ( n P r ), combination ( n C r ), complex number

polar coordinate symbol ( ∠ )

9th Dot product (·) (fx-570MS/991MS only)

10th

Multiplication, division ( × , ÷)

11th Addition, subtraction (+, –)

12th Logical AND (and)

13th Logical OR, XOR, XNOR (or, xor, xnor)

• The negative sign (–) is treated as a Type B function, so particular

care is required when the calculation includes a high-priority Type A

function, or power or root operations.

Example: (−2)

= 16; −2

= −16