HP 48gII Manual do Utilizador descarregar pdf (Página 98)

Page 6-7

‚í 1\‚í1@@OK@@

@SOLVE@ Solve equation

The screen will show the solution as follows:

Press ` to return to stack. The stack will show the following results in ALG

mode (the same result would be shown in RPN mode):

All the solutions are complex numbers: (0.432,-0.389), (0.432,0.389), (-

0.766, 0.632), (-0.766, -0.632).

Generating polynomial coefficients given the polynomial's roots

Suppose you want to generate the polynomial whose roots are the numbers [1,

5, -2, 4]. To use the calculator for this purpose, follow these steps:

‚Ï˜˜@@OK@@ Select Solve poly…

˜„Ô1‚í5 Enter vector of roots

‚í2\‚í 4@@OK@@

@SOLVE@ Solve for coefficients

Press ` to return to stack, the coefficients will be shown in the stack.

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 174 175

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HP 48gII Manual do Utilizador Página 98