Casio FX-115MS - ADDITIONAL FUNCTIONS Betriebsanweisung PDF herunterladen (Seite 15)

E-13

COMP

Differential

Calculations

The procedure described below obtains the derivative of

a function.

Use the

F key to enter the COMP Mode when you

want to perform a calculation involving differentials.

COMP ............................................................

F 1

• Three inputs are required for the differential expression:

the function of variable

x, the point (a) at which the dif-

ferential coefficient is calculated, and the change in

x (∆x).

A J expression P a P ∆x T

• Example: To determine the derivative at point x = 2 for

the function

y = 3x

– 5x + 2, when the increase or de-

crease in

x is ∆x = 2 × 10

–4

(Result:

)

p x K , 5 p x + 2 P 2 P

2 e D 4 T =

•Input a value from 1 to 4 to select the probability

distribution calculation you want to perform.

P(t)R(t)Q(t)

• Example: To determine the normalized variate (→t) for

x = 53 and normal probability distribution P(t) for the

following data: 55, 54, 51, 55, 53, 53, 54, 52

(

→

t = 

0.284747398

, P(t) =

0.38974

)

S 54 S 51 S 55 S

53 S S 54 S 52 S

53 A D 4(

→

t) =

A D 1(

) D 0.28 F =

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 29 30

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