Casio V.P.A.M fx-991s Руководство - Страница 9
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Печатать страницу2/BEFORE BEGINNING CALCULATIONS
Formula
Input (V.P.A.M. System)
The V.P.A.M. System of this calculator lets you sim-
ply input a formula just as it is written, and then press
the Eq key to obtain the result. The execution of
arithmetic operations, functions and expressions wi-
thin parentheses are automatically performed in the
correct priority sequence.
*Be sure to press the Gg key before starting any new
calculation.
Example
1: 2 x (3 + 4) =
GS 2E3
J 3G9
Example 2: sin30 = 0.5
@ Calculation Priority Sequence
The calculation priority sequence is used in mathemat-
ics to decide which operation should be performed first.
This calculator automatically assigns the calculation
priority sequence shown below.
(1) Type A Functions (where the value is ente7ed first
and then the function key is pressed)
x', x', x!, NEG (in the BASE-N Mode)
2) Powers, roots
5 ee
Coordinate conversions
ROP,
P>R |
Permutations, conbinations
.
nPr, nCr
(3) Type B Functions (where the function key is Pee
and then the value is entered).
(4) Multiplication, division ineludsg constant calcula-
tions)
—_.. Xe t
6) Addition, subtraction (including constant Calcula-
tions) - is cs
© AND
se
e e
@) OR, XOR, XNOR-- z
*When functions with the same priority sequence are
used in series, they_are executed from right to left
[e'Inv120—e" { In¢v:120)}]. Other expressions of the
ty 'priority sequence are performed from left to
} In the BASEN Mode
Fe
ee
tions are executed right to left.' ~
eee npSund function
Sam
ng contained , within, "parentheses receiyes
highest priority.
Example:
pee
Ged
2+ SROGEsi nize '6:8y= 2271 o18si
—