Struct StepOutput

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pub struct StepOutput {
    pub delta: Mat<f64>,
    pub predicted_reduction: f64,
}

Expand description

A computed trial step and the cost reduction the linear model predicts for it.

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§delta: Mat<f64>

Trial step δ (shape p × 1).

§predicted_reduction: f64

Predicted decrease of ½‖r‖²: −gᵀδ − ½δᵀJᵀJδ (positive for descent).

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impl UnwindSafe for StepOutput

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