Bedienungsanleitung Scientific 491-120080 (Seite 4 von 40) (Deutsch, Englisch, Holländisch, Französisch, Spanisch)

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4 | Instructions for use – Scientic calculator

the displayed value to change to Ans, indicating it

is the value which is currently stored in answer

memory. The result of a calculation can also be

used with a subsequent Type A function (x2, x3,

x-1, x!, ), +, –, ^(xy), , ×, ÷, nPr en nCr.

–Independent memory. Values can be input

directly into memory, added to memory, or

subtracted from memory. Independent memory

is convenient for calculation cumulative totals.

Independent memory uses the same memory

area als variable M. To clear independent memory

(M), input (STO) (M).

Example:

(M)(STO)

(M–)

–Variables. There are nine variables (A through

F, M, X and Y), which can be used to store data,

constants, results and other values. Use the

following operation to delete data assigned to

a particular variable: (STO)

(A). This operation deletes the data assigned to

variable A. Perform the following key operation

when you want to clear the values assigned to all

of the variables: (CLR) (MCl) .

Example:

(STO)( A)

SCIENTIFIC FUNCTION CALCUL ATIONS

Use the key to enter the COMP mode when you

want to perform scientic function calculations.

COMP _______________

Certain types of calculations may take a long time

to complete. Wait for the result to appear on the

display before starting the next calculation.

π = 3.141592654.

–Trigonometric/inverse trigonometric

functions. To change the default angle unit

(degrees, radians, grads), press the key a

number of times until you reach the angle unit

setup screen shown below.

Press the number key ( , or ) which

corresponds with the angle unit you want to use.

(90° = radians = 100

grads).

Example 1: sin 63

°52'41" = (Deg).

Example 2: cos ( rad) =

(Rad).

Example 3: tan-1 0.741 =

(Deg).

–Hyperbolic/inverse hyperbolic functions.

Example 1: sinh 3.6 =

Example 2: sinh-1 30 =

–Common and natural logarithms / anti-

logarithms.

Example 1: log 1.23 =

Example 2: ln 90 (= loge 90) =

lne =

Example 3: 10 =

Example 4: 101.5 =

Example 5: 2-3 =

Example 6: (-2)4 =

Negative values inside of calculations must be

enclosed within parentheses. For details see "Priority

sequence of operations."

–Square roots, cube roots, roots, squares, cubes,

reciprocals, factorials, random numbers,

π and

permutation/combination.

Example 1: 2 + 3 × 5 =

Example 2: 5 + -27 =

Example 3: 123 (= 123 ) =

Example 4: 123 + 302 =

Example 5: 123 =

Example 6:

Example 7:

Example 8: To determine how many dierent

4-digit values can be produced using the numbers

1 through 7. Numbers cannot be duplicated within

the same 4-digit value (1234 is allowed, but 1123

is not).

Example 9: To determine how many diferent

4-member groups can be organized in a group of 10

individuals.

–Angle unit conversion. Press

( ) to display the following menu.

Pressing

, or converts the displayed

value to the corresponding angle unit.

Example: 4,25 radialen omrekenen naar graden.

(Deg)

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