Hyper-Dual Numbers

Python bindings for the num-dual rust crate.

Installation

pip install dualnum

Installation from source

To install from source, you need to have the rust compiler installed.

pip install git+https://github.com/itt-ustutt/dualnum

Sphinx documentation

To build the documentation with sphinx:

maturin develop --release cd docs make html make doctest firefox _build/html/index.html

Usage

Compute first and second derivative of a scalar valued function.

```python from dualnum import HyperDual64 as HD64 import numpy as np

def f(x): return np.exp(x) / np.sqrt(np.sin(x)3 + np.cos(x)3)

print(f(1.5))

x = HD64(1.5, 1.0, 1.0, 0.0) result = f(x) print('f(x) = {}'.format(result.re)) print('df/dx = {}'.format(result.eps1)) print('d2f/dx2 = {}'.format(result.eps1eps2)) ```