Struct F1D

pub struct F1D(/* private fields */);

Representation of a 1D function

Implementations

impl F1D

pub fn derive(&self, order: usize) -> Self

Computes the nth-derivative

use ruut_functions::{f1d, F1D};

let f = f1d!("x^log(x)");
let df = f.derive(1);
assert_eq!(df, f1d!("2ln(x)x^ln(x)/x"));
assert_eq!(df.derive(1), f.derive(2));

impl F1D

pub fn eval(&self, x: f64) -> f64

Evaluates function at x

impl F1D

pub fn integrate(&self, a: f64, b: f64, steps: u32) -> f64

Computes the definite integral of F1D

use ruut_functions::{F1D,f1d};

let func = f1d!("x^2+6");

assert!(func.integrate(0.,1., 10_000) - 6.33333 < 0.00001)

impl F1D

pub fn set_par(&mut self, name: &str, val: f64)

Set param value by name

use ruut_functions::{f1d, F1D};

let mut f = f1d!("x+[a]^2");
f.set_par("a", 6.9);
assert!(f.eval(4.20) - 51.81 < 0.0001);
f.set_par("a", 1.2);
assert!(f.eval(4.20) - 5.64 < 0.0001);

impl F1D

pub fn new(input: &str) -> Result<Self, ParsingError>

Creates a new function from a str

pub fn latex(&self) -> String

Returns a string in latex format

Trait Implementations

impl Add<F1D> for F2D

type Output = F2D

The resulting type after applying the + operator.

fn add(self, rhs: F1D) -> Self::Output

Performs the + operation.

impl Add<F1D> for F3D

type Output = F3D

The resulting type after applying the + operator.

fn add(self, rhs: F1D) -> Self::Output

Performs the + operation.

impl AddAssign<F1D> for F2D

fn add_assign(&mut self, rhs: F1D)

Performs the += operation.

impl AddAssign<F1D> for F3D

fn add_assign(&mut self, rhs: F1D)

Performs the += operation.

impl Debug for F1D

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

Formats the value using the given formatter.

impl Display for F1D

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

Formats the value using the given formatter.

impl Div<F1D> for F2D

type Output = F2D

The resulting type after applying the / operator.

fn div(self, rhs: F1D) -> Self::Output

Performs the / operation.

impl Div<F1D> for F3D

type Output = F3D

The resulting type after applying the / operator.

fn div(self, rhs: F1D) -> Self::Output

Performs the / operation.

impl DivAssign<F1D> for F2D

fn div_assign(&mut self, rhs: F1D)

Performs the /= operation.

impl DivAssign<F1D> for F3D

fn div_assign(&mut self, rhs: F1D)

Performs the /= operation.

impl From<F1D> for F2D

fn from(value: F1D) -> Self

Converts to this type from the input type.

impl From<F1D> for F3D

fn from(value: F1D) -> Self

Converts to this type from the input type.

impl Mul<F1D> for F2D

type Output = F2D

The resulting type after applying the * operator.

fn mul(self, rhs: F1D) -> Self::Output

Performs the * operation.

impl Mul<F1D> for F3D

type Output = F3D

The resulting type after applying the * operator.

fn mul(self, rhs: F1D) -> Self::Output

Performs the * operation.

impl MulAssign<F1D> for F2D

fn mul_assign(&mut self, rhs: F1D)

Performs the *= operation.

impl MulAssign<F1D> for F3D

fn mul_assign(&mut self, rhs: F1D)

Performs the *= operation.

impl PartialEq for F1D

fn eq(&self, other: &F1D) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Sub<F1D> for F2D

type Output = F2D

The resulting type after applying the - operator.

fn sub(self, rhs: F1D) -> Self::Output

Performs the - operation.

impl Sub<F1D> for F3D

type Output = F3D

The resulting type after applying the - operator.

fn sub(self, rhs: F1D) -> Self::Output

Performs the - operation.

impl SubAssign<F1D> for F2D

fn sub_assign(&mut self, rhs: F1D)

Performs the -= operation.

impl SubAssign<F1D> for F3D

fn sub_assign(&mut self, rhs: F1D)

Performs the -= operation.

impl StructuralPartialEq for F1D