pub fn roots(coefficients: &[f64], tolerance: f64) -> OgeomResult<Vec<f64>>Expand description
The real roots of a polynomial, in increasing order.
coefficients are in ascending power order: c[0] + c[1] x + c[2] x^2 ....
Degrees up to four are solved in closed form; above that the polynomial is
deflated by companion-matrix eigenvalues.
Repeated roots are returned once each, since a geometry caller wants the distinct parameter values.
ยงErrors
OgeomError::Construction if every
coefficient is zero, where every value is a root.