Python ProgrammingHardHigh School (11–12)High School (9–10)UndergraduateGeneralPython for Science and Maths › Trigonometry and Waves by Computer
Created by StemPy LabA strain gauge on a bridge vibrates at 45 Hz. The recorder stores 60 numbers every second. At which frequency does the spectrum of the record peak?
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← A fit returns a table of squared errors. What does this code print for the errors? import numpy as np; pcov = np.array([[0.0049, 0], [0, 0.0081]]); print(np.sqrt(np.diag(pcov)))What does this code print for the frequency of the tallest bar of the spectrum, in Hz? import numpy as np; t = np.arange(0, 2, 0.025); y = np.sin(2 * np.pi * 13.5 * t); f = np.fft.rfftfreq(t.size, 0.025); print(f[np.argmax(np.abs(np.fft.rfft(y)))]) →
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