Generating Polynomial Coefficients Given The Polynomial's Roots - HP 48gII User Manual

‚í 1\‚í1@@OK@@
@SOLVE@
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:
‚Ϙ˜@@OK@@
˜„Ô1‚í5
‚í2\‚í 4@@OK@@
@SOLVE@
Press ` to return to stack, the coefficients will be shown in the stack.
Solve equation
Select Solve poly...
Enter vector of roots
Solve for coefficients
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