pub trait Cos: Sized {
type Error: Error;
// Required methods
fn try_cos(self) -> Result<Self, <Self as Cos>::Error>;
fn cos(self) -> Self;
}Expand description
Trait for computing the cosine of a number.
This trait defines methods for computing the cosine of a number. It includes both a safe method that returns a Result and an unsafe method that directly returns the computed value.
§Associated Types
Error: The error type that is returned by thetry_cosmethod. This type must implement thestd::error::Errortrait.
§Required Methods
-
try_cos: Computes the cosine of the number and returns aResult. If the computation is successful, it returnsOkwith the computed value. If an error occurs, it returnsErrwith the associated error. -
cos: Computes the cosine of the number and directly returns the computed value. In Debug mode this method may panic if the computation fails.
Required Associated Types§
Required Methods§
Sourcefn try_cos(self) -> Result<Self, <Self as Cos>::Error>
fn try_cos(self) -> Result<Self, <Self as Cos>::Error>
Computes the cosine of self and returns a Result.
If the computation is successful, it returns Ok with the computed value. If an error occurs, it returns Err with the associated error.
§Errors
This method returns an error if the computation fails. The error type is defined by the associated Error type.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.