# Fourier and Arithmetic

**English** · <a href="../../../zh/manual/algorithms/groups/fourier-arithmetic.html">简体中文</a>

QFT and reversible arithmetic primitives: QFT itself, Draper Fourier addition, modular multiplication and order finding, plus reversible computing constructions such as Boolean SSA networks and fixed-point arithmetic. Entries come from the `fourier`/`arithmetic` modules of `common` and the number-theory part of `basics`.

```{toctree}
:maxdepth: 1

../qft
../fourier-addition
../order-finding
../modular-multiplication
../fixed-point-arithmetic
../boolean-networks
```