Sharp EL-W535TG - Differentiation Calculations; Demand Elasticity Calculation

45
d/dx
x
Differentiation calculation
<Example 1>
D =
- 24
P
25920
If the demand curve is expressed by
find the price elasticity of demand when P=360 (D=48).
*Price elasticity of demand:
A value that indicates how sensitive demand is to changes of price.
P
dP
D
dD
D
P
dP
dD
Price elasticity
of demand
Rate of demand
change
Rate of price
change
= = =
- - -
Operation Display
48
24
360
360
25920
d/dx
x
Find the following value when P=360 and D=48.
x = 360
- 24
x
25920
D
P
d( )
dx
-
(This example is for EL-W516T only.)