unitforge 0.3.9

A library for unit and quantity consistent computations in Rust

Unitforge

Unitforge is a Python library for working with physical quantities that respect units, dimensional analysis, and arithmetic correctness — powered by high-performance Rust under the hood.

Built for scientific computing, simulation, and engineering workflows where unit safety is non-negotiable.

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Features

• Strong unit enforcement: Prevent unit mismatch bugs at runtime.
• Arithmetic support: Add, subtract, multiply, and divide quantities with automatic unit resolution.
• Unit conversion: Convert between compatible units on the fly.
• Scientific formatting: Values display with 4 significant digits and the configured unit.
• 3D Vectors & Matrices: Perform vector/matrix math with quantities and units.
• NumPy integration: Convert to/from NumPy arrays easily.
• Constants: Built-in constants like the speed of light.
• Serialization-ready: Optional serde-based serialization support (if compiled with feature).

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Installation

pip install unitforge

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Example Usage

from unitforge import Force, ForceUnit, Distance, DistanceUnit

f = Force(12.0, ForceUnit.N)
print(f.to(ForceUnit.mN))  # → 12000.0

d = Distance(2.0, DistanceUnit.m)
work = f * d
print(work)  # → 24 Nm

Unit Conversion

f = Force(1.0, ForceUnit.N)
print(f.to(ForceUnit.kN))  # → 0.001

Arithmetic

f1 = Force(5.0, ForceUnit.N)
f2 = Force(3.0, ForceUnit.N)
f_sum = f1 + f2
print(f_sum.to(ForceUnit.N))  # → 8.0

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Vector and Matrix Support

from unitforge import Vector3, Distance, DistanceUnit

v = Vector3.from_list([
    Distance(3., DistanceUnit.m),
    Distance(4., DistanceUnit.m),
    Distance(12., DistanceUnit.m)
])

print(v.norm())  # → 13.0 m

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NumPy Interoperability

import numpy as np
from unitforge import Vector3, ForceUnit

arr = np.array([1.0, 2.0, 3.0])
vec = Vector3.from_array(arr, ForceUnit.N)
arr_back = vec.to_array(ForceUnit.N)

print(arr_back)  # → [1. 2. 3.]

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Quantities Available

Examples include:

• Acceleration, AreaOfMoment, Density, Stiffness, Time, Volume, Angle, Area, Distance, ForcePerVolume, Strain, Velocity, AngularAcceleration, Charge, ForceArea, Force, Stress, VelocitySquared, AngularVelocity, Compliance, ForceDistance, ForceVolume, Mass, Voltage
• Each with associated unit enums (e.g., ForceUnit, DistanceUnit, ...)

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from math import isclose
from unitforge import Force, ForceUnit

f = Force(12., ForceUnit.N)
assert isclose((f * 2).to(ForceUnit.N), 24.)

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Contributing

Contributions are welcome! While the core is implemented in Rust, Python usage feedback, bug reports, and API improvements are highly valued.

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Repository

GitLab – Unitforge Crate