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---
title: mtx_circular_harmonics
description: evaluate the circular harmonics as matrix
categories:
- object
pdcategory: Spherical Harmonics
see_also:
- mtx_spherical_harmonics
inlets:
1st:
- type: matrix
description: \(1\times L\) matrix with azimuth angles in radians for all \(L\) directions to evaluate
outlets:
1st:
- type: matrix
description: \(L\times (2N+1)\) matrix with the circular harmonics evaluated from zeroth to \(N^\mathrm{th}\) order using the numerical creation argument \(N\) of the object
draft: false
---
Useful for 2D Ambisonic encoding and decoding. The object permits several different normalizations N2D (default), N2D2PI, SN2D
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