trianle wave equation

[ssguns2-disable]

I have been trying to find a way to graph a triangle wave so I can analysis with fourier transforms. Problem, do not know the equation for a triangle wave. Please anyone help!!

Thank you,

[ptc-1368288]

Does it works ? Increase the number of terms

[ssguns2-disable]

gives error "this variable must be a range variable"

[TomGutman]

|mod(|x|,a)-a/2|

a is the period. Range is zero to a/2. Scale as desired.

Tom Gutman

[ptc-1368288]

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