Example 1:

Find the roots of x5 – x4 – 101x3 +101x2 + 100x – 100 = 0.

Keys:

Display:

WP

@value

5 f

@value

1 _f

@value

101 f

@value

101 f

@value

100 f

@value

100 _f %/)

f%/)

f%/)

f%/.)

fL/.)

Description:

Starts the polynomial root finder; prompts for order.

Stores 5 its F; prompts for E. Stores –1 in E; prompts for D. Store –101 in D. prompts for C. Stores 101 in C; prompts for B. Stores 100 in B; prompts for A. Stores –100 in A; calculates the first root.

Calculates the second root. Displays the third root. Displays the fourth root. Displays the fifth root.

Example 2:

Find the roots of 4x4 – 8x3 – 13x2 – 10x + 22 = 0. Because the coefficient of the highest–order term must be 1, divide that coefficient into each of the other coefficients.

Keys:

Display:

WP

@value

4 f

@value

8 _š4



pf

@

 

value

13 _š 

4 pf

@value

Description:

Starts the polynomial root finder; prompts for order.

Stores 4 its F; prompts for D. Stores –8/4 in D; prompts for C.

Store –13/4 in C. prompts for B.

15–30 Mathematics Programs

File name 32sii-Manual-E-0424

 

Printed Date : 2003/4/24

Size : 17.7 x 25.2 cm