---
title: "KCL Constants"
excerpt: "Documentation for the KCL constants."
layout: manual
---

## Table of Contents


### `std`

- [`HALF_TURN`](/docs/kcl/consts/std-HALF_TURN)
- [`QUARTER_TURN`](/docs/kcl/consts/std-QUARTER_TURN)
- [`THREE_QUARTER_TURN`](/docs/kcl/consts/std-THREE_QUARTER_TURN)
- [`XY`](/docs/kcl/consts/std-XY)
- [`XZ`](/docs/kcl/consts/std-XZ)
- [`YZ`](/docs/kcl/consts/std-YZ)
- [`ZERO`](/docs/kcl/consts/std-ZERO)

### `std::math`

- [`E`](/docs/kcl/consts/std-math-E)
- [`PI`](/docs/kcl/consts/std-math-PI)
- [`TAU`](/docs/kcl/consts/std-math-TAU)