Section 13: Finding the Roots of an Equation 185

Keystrokes

Display

 

 

005–

16

t / 20.

'

006–

12

 

007–

16

et / 20.

1

008–

1

 

+

009–

40

1 – et / 20.

5

010–

5

 

0

011–

0

 

0

012–

0

 

0

013–

0

 

*

014–

20

5000 (1 – et / 20).

®

015–

34

Brings another t-value

 

 

 

into X-register.

2

016–

2

 

0

017–

0

 

0

018–

0

 

*

019–

20

200t.

-

020–

30

5000(1 – et / 20) – 200t.

n

021–

43 32

 

Switch to Run mode, key in two initial estimates of the time (for example, 5 and 6 seconds) and execute _.

Keystrokes

Display

 

¥

 

Run mode.

5 v

5.0000

Initial estimates.

6

6

 

´_A

9.2843

The desired root.

Verify the root by reviewing the Y- and Z-registers.

Keystrokes

Display

)

9.2843

)

0.0000

A previous estimate of the root.

Value of the function at the root showing that h = 0.