HP 38g Graphing Calculator User Manual

Page 86

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AREA

You move the cursor to the starting point first, then shade the

area.

{{MENU}} {{FCN}}

Select

Area. . . {{OK}}

{{OK}}

to set starting point

10 times

{{OK}}

,, ^

[ /

S E L E C T E N D P O I N T

R C T i r o a i

........................... \ l

The shaded area has a value of -0,666666666667 (to 12-digit
accuracy). It is negative because the region lies below the

axis.

Enter a second expression,

f(x)

= in Function aplet, and

find the intersection of it with

f(x) = x ‘ - l .

Select the Function aplet

SYMB

{{X}}

3 I

enter

)

FUNCTION SVHiOLIC VIEM^

^ F l < : x > = x a

-1

^F2CX>=X''3

F3(:x:)=

F4=

F5=

Esnoanii

iHHiiBirang

INTERSECT You must specify whether to f i n d the intersection with the

second function or with the x-axis.

I PLOT I {{MENU}} {{FCN}}

Select

Intersection

{{OK}}

Select the function F(X)=X''3

(not the x-axis)

{{

}}.

, . A |

l - S E C T :

3-22 Plotting and Exploring Functions