functions
.........\@quaternion
.........\...........\abs.m
.........\...........\acos.m
.........\...........\acosh.m
.........\...........\adjoint.m
.........\...........\angle.m
.........\...........\arrayfun.m
.........\...........\asin.m
.........\...........\asinh.m
.........\...........\atan.m
.........\...........\atanh.m
.........\...........\axis.m
.........\...........\blkdiag.m
.........\...........\bsxfun.m
.........\...........\cast.m
.........\...........\cat.m
.........\...........\cd.m
.........\...........\cdpolar.m
.........\...........\ceil.m
.........\...........\change_basis.m
.........\...........\char.m
.........\...........\complex.m
.........\...........\conj.m
.........\...........\conv.m
.........\...........\conv2.m
.........\...........\convert.m
.........\...........\cos.m
.........\...........\cosh.m
.........\...........\cross.m
.........\...........\ctranspose.m
.........\...........\cumprod.m
.........\...........\cumsum.m
.........\...........\det.m
.........\...........\diag.m
.........\...........\diff.m
.........\...........\disp.m
.........\...........\display.m
.........\...........\displayall.m
.........\...........\double.m
.........\...........\eig.m
.........\...........\end.m
.........\...........\eq.m
.........\...........\exp.m
.........\...........\expm.m
.........\...........\fft.m
.........\...........\fft2.m
.........\...........\fftshift.m
.........\...........\fix.m
.........\...........\floor.m
.........\...........\fprintf.m
.........\...........\funm.m
.........\...........\horzcat.m
.........\...........\ifft.m
.........\...........\ifft2.m
.........\...........\ifftshift.m
.........\...........\imag.m
.........\...........\image.m
.........\...........\imwrite.m
.........\...........\int16.m
.........\...........\int32.m
.........\...........\int8.m
.........\...........\inv.m
.........\...........\ipermute.m
.........\...........\iqdft.m
.........\...........\iqdft2.m
.........\...........\iqfft.m
.........\...........\iqfft2.m
.........\...........\isempty.m
.........\...........\isfinite.m
.........\...........\ishermitian.m
.........\...........\isinf.m
.........\...........\isnan.m
.........\...........\ispure.m
.........\...........\isreal.m
.........\...........\isunitary.m
.........\...........\ldivide.m
.........\...........\length.m
.........\...........\log.m
.........\...........\logm.m
.........\...........\lu.m
.........\...........\mean.m
.........\...........\minus.m
.........\...........\mpower.m
.........\...........\mrdivide.m
.........\...........\mtimes.m
.........\...........\ndims.m
.........\...........\ne.m
.........\...........\norm.m
.........\...........\normq.m
.........\...........\numel.m
.........\...........\orthogonal.m
.........\...........\orthonormal_basis.m
.........\...........\permute.m
.........\...........\plus.m
.........\...........\power.m
.........\...........\private
.........\...........\.......\compose.m
.........\...........\.......\dft_axis.m
.........\...........\.......\ess.m