Hp 50g Graphing Calculator Manual de usuario descargar pdf (Pagina 628)

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101

Page 18-61

« Open program

 x y p Enter lists x and y, and p (levels 3,2,1)

« Open subprogram 1

x SIZE  n Determine size of x list

« Open subprogram 2

x VANDERMONDE Place x in stack, obtain V

IF ‘p<n-1’ THEN This IF implements step 3 in algorithm

n Place n in stack

p 2 + Calculate p+1

FOR j Start loop j = n-1, n-2, …, p+1, step = -1

j COL− DROP Remove column and drop it from stack

-1 STEP Close FOR-STEP loop

ELSE

IF ‘p>n-1’ THEN

n 1 + Calculate n+1

p 1 + Calculate p+1

FOR j Start a loop with j = n, n+1, …, p+1.

x j ^ Calculate x

, as a list

OBJARRY Convert list to array

j COL+ Add column to matrix

NEXT Close FOR-NEXT loop

END Ends second IF clause.

END Ends first IF clause. Its result is X

y OBJARRY Convert list y to an array

MTREG X and y used by program MTREG

NUM Convert to decimal format

» Close sub-program 2

» Close sub-program 1

» Close main program

Save it into a variable called POLY (POLYnomial fitting).

As an example

, use the following data to obtain a polynomial fitting with p =

2, 3, 4, 5, 6.

1 2 ... 623 624 625 626 627 628 629 630 631 632 633 ... 886 887

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Hp 50g Graphing Calculator Manual de usuario Pagina 628

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