Differentiation Calculation - Sharp EL-W531X Operation Manual

Differentiation calculation

(Function for EL-W506X/EL-W516X/EL-W506)
<Example 1>
If the demand curve is expressed by
find the price elasticity of demand when P=360 (D=48).
Find the following value when P=360 and D=48.
d/dx
24
25920
- 24
D =
P
*Price elasticity of demand:
A value that indicates how sensitive demand is to changes of price.
Price elasticity
=
of demand
25920
(
- 24
P d
x
-
D dx
Operation
360
48
25920
x
360
Rate of demand
change
-
Rate of price
change
)
x = 360
50
x
d/dx
dD
D
P dD
- -
= =
D dP
dP
P
Display