use-torque

Torque-specific scalar helpers for RustUse.

Install

[dependencies]
use-torque = "0.0.1"

Foundation

use-torque provides small scalar helpers for torque, lever-arm calculations, perpendicular force components, rotational equilibrium, angular acceleration from torque, and a few basic moment-of-inertia formulas.

Inputs are expected to be SI-style numeric values:

• newtons for force
• meters for lever arm and radius
• newton-meters for torque
• radians for angle helpers unless the function name says degrees
• kilograms for mass
• kilogram square meters for moment of inertia
• radians per second squared for angular acceleration

The crate does not define a full unit system. Vector operations should live in or compose with use-vector, and broader rotational motion should live in a separate use-rotation crate.

Example

use use_torque::{is_rotational_equilibrium, torque, torque_at_angle_degrees};

let angled_torque = torque_at_angle_degrees(10.0, 2.0, 30.0).unwrap();

assert_eq!(torque(10.0, 2.0), Some(20.0));
assert!((angled_torque - 10.0).abs() < 1.0e-12);
assert_eq!(is_rotational_equilibrium(&[10.0, -10.0], 1.0e-6), Some(true));

When to use directly

Choose use-torque when you only need reusable torque formulas and simple rotational balance helpers.

Scope

• APIs stay dependency-free and f64-first.
• The crate does not define a full unit system.
• Vector math belongs in or alongside use-vector.
• Broader rotational motion, angular momentum, and rotational kinetic energy belong in a separate use-rotation crate.

Status

use-torque is a pre-1.0 crate with a deliberately small API.