Enum CasErrorKind 

pub enum CasErrorKind {
    NonPolynomial,
    NegativeExponent,
    UnknownSymbol,
}

按幂次提取系数时的错误类别。

Variants

NonPolynomial

出现变量的非多项式用法（如 sqrt(x)、变量作分母）。

NegativeExponent

变量出现负指数（Laurent 情形，当前不支持）。

UnknownSymbol

传入的变量名在该 Context 中不存在。

Trait Implementations

impl Clone for CasErrorKind

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for CasErrorKind

impl Debug for CasErrorKind

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

Formats the value using the given formatter.

impl Eq for CasErrorKind

impl PartialEq for CasErrorKind

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CasErrorKind