sawtooth#
- scipy.signal.sawtooth(t, width=1)[source]#
- Return a periodic sawtooth or triangle waveform. - The sawtooth waveform has a period - 2*pi, rises from -1 to 1 on the interval 0 to- width*2*pi, then drops from 1 to -1 on the interval- width*2*pito- 2*pi. width must be in the interval [0, 1].- Note that this is not band-limited. It produces an infinite number of harmonics, which are aliased back and forth across the frequency spectrum. - Parameters:
- tarray_like
- Time. 
- widtharray_like, optional
- Width of the rising ramp as a proportion of the total cycle. Default is 1, producing a rising ramp, while 0 produces a falling ramp. width = 0.5 produces a triangle wave. If an array, causes wave shape to change over time, and must be the same length as t. 
 
- Returns:
- yndarray
- Output array containing the sawtooth waveform. 
 
 - Examples - A 5 Hz waveform sampled at 500 Hz for 1 second: - >>> import numpy as np >>> from scipy import signal >>> import matplotlib.pyplot as plt >>> t = np.linspace(0, 1, 500) >>> plt.plot(t, signal.sawtooth(2 * np.pi * 5 * t)) 