Struct LagrangianFunction 

pub struct LagrangianFunction {
    pub name: String,
    pub vars: Vec<String>,
    pub n_dof: usize,
}

A Lagrangian function L(q_1, …, q_n, q̇_1, …, q̇_n, t).

Fields

name: String

Name of the Lagrangian.

vars: Vec<String>

List of generalized coordinate names.

n_dof: usize

Number of degrees of freedom.

Implementations

impl LagrangianFunction

pub fn new(n_dof: usize) -> Self

Create a new Lagrangian for n_dof degrees of freedom.

pub fn euler_lagrange_equation_string(&self) -> String

Return the Euler-Lagrange equation in string form for each degree of freedom.

E-L: d/dt (∂L/∂q̇_i) - ∂L/∂q_i = 0 for i = 1, …, n.

Trait Implementations

impl Clone for LagrangianFunction

fn clone(&self) -> LagrangianFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LagrangianFunction

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

Formats the value using the given formatter.