Enum ScalarSurrogateBuildError 

pub enum ScalarSurrogateBuildError {
    SigmaGridMismatch {
        expected: usize,
        actual: usize,
    },
    InvalidChebyshevBox {
        n_max: f64,
        m: usize,
    },
    InsufficientAccuracyOnBox {
        n_max: f64,
        m: usize,
        max_rel_err: f64,
        tolerance: f64,
    },
}

Errors from scalar surrogate plan construction.

Variants

SigmaGridMismatch

sigma flat length disagrees with the matrix grid size.

Fields

expected: usize

Expected length (n_rows).

actual: usize

Actual sigma.len().

InvalidChebyshevBox

A Chebyshev-node build was given n_max ≤ 0 or M < 2.

Fields

n_max: f64

Offending upper bound.

m: usize

Requested node count.

InsufficientAccuracyOnBox

The Chebyshev interpolant cannot reach target accuracy on the requested [0, n_max] box with M nodes — the box is too wide for the σ profile. Chebyshev converges exponentially in M for smooth T(n) = exp(-n σ), but if max(n_max · σ) is large the interpolant loses precision. Callers should either shrink n_max (preferred — tighter fit-exploration bounds fix this) or increase M. Codex PR #475 round-2 P2.

Fields

n_max: f64

Requested density box upper bound.

m: usize

Chebyshev node count that failed.

max_rel_err: f64

Measured maximum relative error of the interpolant against the exact apply_r ∘ exp(-n σ) on the box (evaluated at midpoints between Chebyshev nodes).

tolerance: f64

Required tolerance (currently 1e-6).

Trait Implementations

impl Debug for ScalarSurrogateBuildError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ScalarSurrogateBuildError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ScalarSurrogateBuildError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.