ROOT_VAL Operator
Date: 2020-10-07 18:10:00

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### 9.13 ROOT_VAL Operator

The ROOT_VAL operator takes a single univariate polynomial as argument, and returns a list of root values at system precision (or greater if required to separate roots). It is used with the syntax

ROOT_VAL(EXPRN:univariate polynomial):list.

For example, the sequence

on rounded; root_val(x^3-x-1);

gives the result

{0.562279512062*I - 0.662358978622, - 0.562279512062*I
- 0.662358978622,1.32471795724}

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