Triangle wave shaped array in Python

Question

What is the most efficient way to produce an array of 100 numbers that form the shape of the triangle wave below, with a max/min amplitude of 0.5?

Triangle waveform in m

Answer 1

The simplest way to generate a triangle wave is by using signal.sawtooth. Notice that signal.sawtooth(phi, width) accepts two arguments. The first argument is the phase, the next argument specifies the symmetry. width = 1 gives a right-sided sawtooth, width = 0 gives a left-sided sawtooth and width = 0.5 gives a symmetric triangle. Enjoy!

from scipy import signal
import numpy as np
import matplotlib.pyplot as plt
t = np.linspace(0, 1, 500)
triangle = signal.sawtooth(2 * np.pi * 5 * t, 0.5)
plt.plot(t, triangle)