---------------------------------------------------------------- Basic Operations ---------------------------------------------------------------- cumprod Cumulative product of elements. cumsum Cumulative sum of elements. max Largest component. mean Average or mean value. median Median value. min Smallest component. prod Product of elements. sort Sort in ascending order. std Standard deviation. sum Sum of elements. trapz Numerical integration using trapezoidal method. ----------------------------------------------------------------
------------------------------------------------------------------- Finite Differences ------------------------------------------------------------------- del2 Five-point discrete Laplacian. diff Difference function and approximate derivative. gradient Approximate gradient. -------------------------------------------------------------------
------------------------------------- Correlation ------------------------------------- corrcoef Correlation coefficients. cov Covariance matrix. -------------------------------------
--------------------------------------------------------------------- Filtering and Convolution --------------------------------------------------------------------- conv Convolution and polynomial multiplication. conv2 Two-dimensional convolution. deconv Deconvolution and polynomial division. filter One-dimensional digital filter. filter2 Two-dimensional digital filter. ---------------------------------------------------------------------
---------------------------------------------------------------------- Fourier Transforms ---------------------------------------------------------------------- abs Magnitude. angle Phase angle. cplxpair Sort numbers into complex conjugate pairs. fft Discrete Fourier transform. fft2 Two-dimensional discrete Fourier transform. fftshift Move zeroth lag to center of spectrum. ifft Inverse discrete Fourier transform. ifft2 Two-dimensional inverse discrete Fourier transform. nextpow2 Next higher power of 2. unwrap Remove phase angle jumps across 360\xa1 boundaries. ----------------------------------------------------------------------
--------------------------------------- Vector Functions --------------------------------------- cross Vector cross product. dot Vector dot product. ---------------------------------------
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