You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: getTgayReflectionLoss.m
    path of file: ./repos/qd-realization/src/raytracer
    
    the code of the file until where you have to start completion: function reflectionLossdB = getTgayReflectionLoss(MaterialLibrary,...
                arrayOfMaterials, multipath, defaultReflectionLoss)
% GETTGAYREFLECTIONLOSS returns the ray reflection loss in dB 
% based on TGay measurements [1]
% [1] A. Maltsev, A. Pudeyev, A. Lomayev, and I. Bolotin, "Channel models 
% for IEEE 802.11ay," IEEE doc, pp. 802{11, 2017.
%
% This function first calculates the reflectances for vertical and 
% horizontal polarization for each reflection using the incident angle and  
% relative permittivity of the material in the Fresnel equation.
% Subsequently, the reflection loss for each reflection is calculated by 
% the taking the average of the vertical and horizontal reflectance powers.
% For REFLECTIONCOEFFICIENT calculation, refer to equation 7.4.2 
% https://www.ece.rutgers.edu/~orfanidi/ewa/
%
% Inputs:
% MaterialLibrary - contains each of the reflectors along with their
%   material and relative permittivity value
% arrayOfMaterials - array of materials corresponding to each of the planes
%   where a ray is reflected. The dats is the row number of material from 
%   MaterialLibrary. 
% multipath - consists of specular multipath parameters. This vector is
%   used to calculate angle(s) of incident and also to get information about
%   the order of reflection
% defaultReflectionLoss - defaultReflectionLoss is used when material is 
% missing in material library or there is a mismatch between the material 
% present in the CAD file and material library.
% 
% Output: 
% reflectionLossdB - ray reflection loss in dB

% NIST-developed software is provided by NIST as a public service. You may
% use, copy and distribute copies of the software in any medium, provided

    
function reflectionLossdB = getTgayReflectionLoss(MaterialLibrary,...
                arrayOfMaterials, multipath, defaultReflectionLoss)
% GETTGAYREFLECTIONLOSS returns the ray reflection loss in dB 
% based on TGay measurements [1]
% [1] A. Maltsev, A. Pudeyev, A. Lomayev, and I. Bolotin, "Channel models 
% for IEEE 802.11ay," IEEE doc, pp. 802{11, 2017.
%
% This function first calculates the reflectances for vertical and 
% horizontal polarization for each reflection using the incident angle and  
% relative permittivity of the material in the Fresnel equation.
% Subsequently, the reflection loss for each reflection is calculated by 
% the taking the average of the vertical and horizontal reflectance powers.
% For REFLECTIONCOEFFICIENT calculation, refer to equation 7.4.2 
% https://www.ece.rutgers.edu/~orfanidi/ewa/
%
% Inputs:
% MaterialLibrary - contains each of the reflectors along with their
%   material and relative permittivity value
% arrayOfMaterials - array of materials corresponding to each of the planes
%   where a ray is reflected. The dats is the row number of material from 
%   MaterialLibrary. 
% multipath - consists of specular multipath parameters. This vector is
%   used to calculate angle(s) of incident and also to get information about
%   the order of reflection
% defaultReflectionLoss - defaultReflectionLoss is used when material is 
% missing in material library or there is a mismatch between the material 
% present in the CAD file and material library.
% 
% Output: 
% reflectionLossdB - ray reflection loss in dB

% NIST-developed software is provided by NIST as a public service. You may
% use, copy and distribute copies of the software in any medium, provided
% that you keep intact this entire notice. You may improve,modify and
% create derivative works of the software or any portion of the software,
% and you may copy and distribute such modifications or works. Modified
% works should carry a notice stating that you changed the software and
% should note the date and nature of any such change. Please explicitly
% acknowledge the National Institute of Standards and Technology as the
% source of the software. NIST-developed software is expressly provided
% "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED, IN FACT OR
% ARISING BY OPERATION OF LAW, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
% WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
% NON-INFRINGEMENT AND DATA ACCURACY. NIST NEITHER REPRESENTS NOR WARRANTS
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