Python ProgrammingMediumHigh School (11–12)High School (9–10)UndergraduateGeneralPython for Science and Maths › Trigonometry and Waves by Computer
Created by StemPy LabHow many full cycles of y = np.cos(x / 3) fit into from to ?
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← A shifted wave sampled at five angles. What does this print? import numpy as np; x = np.linspace(0, 2 * np.pi, 5); y = 2 * np.sin(x - np.pi / 2); print(np.round(y).astype(int).tolist())A false rule for the cosine of a double angle is tested on five angles. What does this print? import numpy as np; a = np.radians(np.arange(0, 181, 45)); left = np.cos(2 * a); right = 2 * np.cos(a) - 1; print(np.allclose(left, right), int(np.sum(np.isclose(left, right)))) →
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