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: tt_RandOrthMat.m
    path of file: ./repos/imtsl/libs/tensor_toolbox_2.5
    
    the code of the file until where you have to start completion: function M=tt_RandOrthMat(n, tol)
%TT_RANDORTHMAT Generates random n x n orthogonal real matrix.

    
function M=tt_RandOrthMat(n, tol)
%TT_RANDORTHMAT Generates random n x n orthogonal real matrix.
%
% M = RANDORTHMAT(n)
% generates a random n x n orthogonal real matrix.
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% M = RANDORTHMAT(n,tol)
% explicitly specifies a thresh value that measures linear depend