sawtooth (Signal Processing Toolbox)

Generate a sawtooth or triangle wave.

Syntax

x = sawtooth(t)
x = sawtooth(t,width)

Description

sawtooth(t) generates a sawtooth wave with period 2 for the elements of time vector t. sawtooth(t) is similar to sin(t), but creates a sawtooth wave with peaks of -1 and 1 instead of a sine wave. The sawtooth wave is defined to be -1 at multiples of 2 and to increase linearly with time with a slope of 1/ at all other times.

sawtooth(t,width) generates a modified triangle wave where width, a scalar parameter between 0 and 1, determines the point between 0 and 2 at which the maximum occurs. The function increases from -1 to 1 on the interval 0 to 2*width, then decreases linearly from 1 to -1 on the interval 2*width to 2. Thus a parameter of 0.5 specifies a standard triangle wave, symmetric about time instant with peak-to-peak amplitude of 1. sawtooth(t,1) is equivalent to sawtooth(t).

See Also

chirp
Generate a swept-frequency cosine.

cos
Compute the cosine of vector/matrix elements (see the MATLAB documentation).

diric
Compute the Dirichlet or periodic sinc function.

gauspuls
Generate a Gaussian-modulated sinusoidal pulse.

pulstran
Generate a pulse train.

rectpuls
Generate a sampled aperiodic rectangle.

sin
Compute the sine of vector/matrix elements (see the MATLAB documentation).

sinc
Compute the sinc or sin(t)/t function.

square
Generate a square wave.

tripuls
Generate a sampled aperiodic triangle.

`chirp`	Generate a swept-frequency cosine.
`cos`	Compute the cosine of vector/matrix elements (see the MATLAB documentation).
`diric`	Compute the Dirichlet or periodic sinc function.
`gauspuls`	Generate a Gaussian-modulated sinusoidal pulse.
`pulstran`	Generate a pulse train.
`rectpuls`	Generate a sampled aperiodic rectangle.
`sin`	Compute the sine of vector/matrix elements (see the MATLAB documentation).
`sinc`	Compute the sinc or sin(t)/t function.
`square`	Generate a square wave.
`tripuls`	Generate a sampled aperiodic triangle.

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