How to plot sawtooth wave sawtooth function?

[Jos (10584)]

What have you tried so far?

Answer 1

[Star Strider]

You are very close.

Try this:

f = @(x) rem(x+3,2)-1
figure
fplot(f, [-3,3])

It offsets the ‘x’ value, subtracts 1 so the limits are appropriate, then does the plot.

It may not be universally applicable, for all ‘x’. It works here for this particular problem.