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Illinois

gridoxide_core::roots

Struct Illinois 

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pub struct Illinois {
    pub lo: f64,
    pub hi: f64,
    pub f_lo: f64,
    pub f_hi: f64,
}
Expand description

Regula falsi with Illinois damping over [lo, hi], given the bracketing values f_lo < 0 <= f_hi.

Each evaluation costs a full corrector in continuation and a full Newton solve in dynamics, so plain bisection would be wasteful; Illinois damping keeps the superlinear rate without losing the bracket the way unmodified regula falsi does when one endpoint stalls.

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§lo: f64§hi: f64§f_lo: f64§f_hi: f64

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impl Illinois

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pub fn next(&self) -> f64

The next trial point.

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pub fn update(&mut self, x: f64, f_x: f64)

Narrows the bracket with the value measured at x.

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pub fn width(&self) -> f64

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