Users/qingkaikong/miniconda3/lib/python3.6/site-packages/ipykernel_launcher.py:38: UserWarning: In Matplotlib 3.3 individual lines on a stem plot will be added as a LineCollection instead of individual lines. To remove this warning and switch to the new behaviour, set the "use_line_collection" keyword argument to True. This significantly improves the performance of a stem plot. Users/qingkaikong/miniconda3/lib/python3.6/site-packages/ipykernel_launcher.py:31: UserWarning: In Matplotlib 3.3 individual lines on a stem plot will be added as a LineCollection instead of individual lines. show () # plot the FFT amplitude before and after plt. 2000 ) # define the cut-off frequency cut_off = 6 # high-pass filter by assign zeros to the # FFT amplitudes where the absolute # frequencies smaller than the cut-off sig_fft_filtered = 0 # get the filtered signal in time domain filtered = ifft ( sig_fft_filtered ) # plot the filtered signal plt. copy () # obtain the frequencies using scipy function freq = fftfreq ( len ( x ), d = 1. # FFT the signal sig_fft = fft ( x ) # copy the FFT results sig_fft_filtered = sig_fft. Introduction to Machine LearningĪppendix A. Ordinary Differential Equation - Boundary Value ProblemsĬhapter 25. Predictor-Corrector and Runge Kutta MethodsĬhapter 23. Ordinary Differential Equation - Initial Value Problems Numerical Differentiation Problem Statementįinite Difference Approximating DerivativesĪpproximating of Higher Order DerivativesĬhapter 22. Least Square Regression for Nonlinear Functions Least Squares Regression Derivation (Multivariable Calculus) Least Squares Regression Derivation (Linear Algebra)
Least Squares Regression Problem Statement Solve Systems of Linear Equations in PythonĮigenvalues and Eigenvectors Problem Statement Linear Algebra and Systems of Linear Equations Errors, Good Programming Practices, and DebuggingĬhapter 14. Inheritance, Encapsulation and PolymorphismĬhapter 10. Variables and Basic Data StructuresĬhapter 7. Python Programming And Numerical Methods: A Guide For Engineers And ScientistsĬhapter 2.
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