HP 33s Scientific manual Description, 15-22Mathematics Programs

  

    ! L  

    "!1L2    L  !      ! L  !1L2

Program Listing:

Program Lines: (In RPN mode)

  

 "!   ! L

Description

Defines the beginning of the polynomial root finder routine.

Prompts for and stores the order of the polynomial. Uses order as loop counter.

Checksum and length: 5CC4 9

Starts prompting routine.

Prompts for a coefficient.

Counts down the input loop.

Repeats until done.

Uses order to select root finding routine. Starts root finding routine.

Checksum and length: 588B 21

Evaluates polynomials using Horner's method, and synthetically reduces the order of the polynomial using the root.

Uses pointer to polynomial as index. Starting value for Horner's method.

Checksum and length: 0072 24

    !  º %  -1L2    L  !   !

Starts the Horner's method loop. Saves synthetic division coefficient. Multiplies current sum by next power of x. Adds new coefficient.

Counts down the loop. Repeats until done.

Checksum and length: 2582 21

 		Starts solver setup routine.
 !		Stores location of coefficients to use.

15–22Mathematics Programs