Autocorrelation using the convolution method 

Autocovariance using the convolution method 

Add a constant phase to a series 

Complex normalized FFT 

Autocorrelation, time domain 

Filter a series using the average of the N neighboring points 

Design an FIR linear phase band pass filter using the Remez Exchange method 

Design an FIR linear phase band stop filter using the Remez Exchange method 

Design an IIR Bessel digital filter. 

Find the power of 2 greater than or equal to the input value or length of the input series 

Bilinear transformation with optional frequency prewarping 

Quantize an input series to 2^bits levels 

Convert raw AD counts to scales engineering values 

3 term Blackman window 

4 term BlackmanHarris window 

Design an IIR Butterworth digital filter. 

Convert cascade filter coefficients to second order section form 

Convert cascade filter coefficients to direct form 

Convert cascade filter coefficients to zeros, poles and gain 

Filter a series with filter coefficients in 2nd order cascade form 

Calculate the complex cepstrum 

DolphChebyshev window 

Design an IIR Chebyshev Type I digital filter 

Design an IIR Chebyshev Type II digital filter 

Circular convolution 

Evaluate the log magnitude of cascade form filter coefficients 

Convolution 

2D convolution 

Calculate the covariance matrix of an array 

Evaluate the phase of cascade form filter coefficients 

Crosscorrelation, time domain 

Calculate the Discrete Cosine Transform 

Decimation with low pass filtering 

Remove samples by a factor of n 

Deconvolve two series 

Remove the mean (or DC value) from a series 

Demodulate an AM series using low pass filtering 

Demodulate an FM series using the Hilbert Transform 

Remove a linear trend from a series 

Digital Fourier Transform, Real/Imaginary 

Delete every Nth sample for FIR decimation 

Calculate the Discrete Sine Transform 

Calculate the number of effective bits possible at a given frequency for a quantizing device 

Design an IIR Elliptic digital filter 

Pad the ends of a series with endpoint reflections 

Autocorrelation using the FFT method 

Autocovariance using the FFT method 

Return the prime factors of a scalar 

Circular convolution using the FFT method 

Convolution using the FFT method 

Deconvolve two series using the FFT method 

Calculate the series derivative in the frequency domain 

Fast Fourier Transform, Real/Imaginary 

2D FFT 

Fast Fourier Transform, Magnitude/Phase 

2D FFT, Magnitude/Phase 

Shift a 1D or 2D FFT so the 0 frequency is the midpoint 

Evaluate a Linear Constant Coefficient Difference Equation 

Calculate series integration in the frequency domain 

Design an arbitrary FIR filter using frequency sampling 

Flattop window 

Alternate 4 term flattop window 

FIR filtering with optional endpoint padding using the FFT 

Evaluate the frequency response of a continuous system 

Design a FIR filter from a given magnitude response using the frequency sampling method 

Evaluate the frequency response of a digital system 

Cross correlation using the FFT method 

Cross covariance using the FFT method 

Interpolate a series by a factor using FFT zero insertion 

Generate an impulse series with optional spacing and delay 

Calculate the group delay of a Ztransform 

Hamming window 

Hanning window 

Design an FIR linear phase high pass filter using the Remez Exchange method 

Calculate a simple Hilbert transform of a real series 

Calculate the inverse complex cepstrum 

Calculate the Inverse Discrete Cosine Transform 

2D IDCT 

Inverse DFT, Real/Imaginary 

Calculate the Inverse Discrete Sine Transform 

Inverse FFT, Real/Imaginary 

2D IFFT, Real/Imaginary 

Inverse FFT, Magnitude/Phase 

2D IFFT, Magnitude/{hase 

Unshift a 1D or 2D FFT so the 0 frequency is the first point 

Calculate the imaginary part of the input 

Calculate the impulse response of a Laplace transform 

Generate discrete unit impulse series 

Calculate the impulse response of a Ztransform 

Calculate the analog filter coefficients from a complex frequency response 

Calculate the digital filter coefficients from a complex frequency response 

Construct a time series from a PSD 

Kaiser window 

Design an FIR linear phase band pass filter using the Kaiser Window method 

Design an FIR linear phase band stop filter using the Kaiser Window method 

Design an FIR linear phase high pass filter using the Kaiser Window method 

Design an FIR linear phase low pass filter using the Kaiser Window method 

Linearly rescale an input series 

Calculate Log base 2 of the input 

Design an FIR linear phase low pass filter using the Remez Exchange method 

Calculate the magnitude of the input 

Calculate the magnitude of the complex amplitude spectrum 

Amplitude modulate an input series 

Frequency modulate an input series 

Determine the exponent for the next power of 2 

Calculate an N point FFT by zero padding or time aliasing 

Calculate an N point spectrum by zero padding or time aliasing 

Filter data using the overlap and save method 

FIR filtering with optional endpoint padding 

Calculate the phase of the input 

Calculate the phase difference between two sinusoids 

Calculate the phase of the complex amplitude spectrum 

Calculate coefficients of the characteristic polynomial 

Stabilize a denominator polynomial by root reflection 

Calculate the Power Spectrum 

Calculate the Power Spectral Density 

Quantize an input series to N levels 

Calculate the real cepstrum 

Calculate the real part of the input 

Indicate if a polynomial has multiple roots 

Linearly rescale an input series 

Resample an input series to an arbitrary rate 

Find the partial fraction expansion of a rational polynomial 

Find the partial fraction expansion of a Ztransform polynomial 

Evaluate the frequency response of a continuous system in Hertz 

Generate SavitzkyGolay smoothing filter coefficients 

Filter a series with a SavitzkyGolay smoothing filter 

Emulate a single pole analog high pass filter 

Single pole digital high pass filter frequency response 

Calculate sin(x)/(x) 

Emulate a single pole analog low pass filter 

Single pole digital low pass filter frequency response 

Calculate the 2D Spectrogram as a B&W image 

Convert second order section form coefficients to cascade form 

Convert second order section form coefficients to direct form 

Convert second order section form coefficients to zeros, poles and gain 

Filter a series with filter coefficients in second order section form 

Calculate the 2D Spectrogram as an image 

Magnitude of a normalized FFT 

Display a PoleZero plot of an Stransform 

Calculate the short time averaged RMS series 

Calculate the step response of a Ztransform 

Taylor window 

Convert direct from coefficients to cascade form 

Convert direct form coefficients to second order section form 

Calculate the statespace representation 

Convert S plane transfer function form to zeros, poles and gain 

Convert Z plane transfer function form to zeros, poles and gain 

Unwrap phase by adding increments of 2π 

Insert N zeros between samples for FIR interpolation 

Multiply a series with a spectral window 

Cross correlation using the convolution method 

Cross covariance using direct convolution 

Band pass filtering by FFT zeroing 

Band stop filtering by FFT zeroing 

Pad the ends of a series with endpoint reflections about 0.0 

Evaluate the frequency response of a Ztransform 

High pass filtering by FFT zeroing 

Sinx/sin interpolation of periodic band limited series 

Low pass filtering by FFT zeroing 

Convert poles, zeros and gain to cascade coefficient form 

Convert poles, zeros and gain to second order section form 

Convert poles, zeros and gain to transfer function form 

Design a digital filter from a set of analog (s domain) zeros and poles 

Display a PoleZero plot of a Ztransform 