Simulink Repeating Sequence giving unexpected Results

I have the following simulink model:

Where T = 1e-3

But the output of the sequence is not what i was expecting. I thought this would give me a triangle wave, amplitude = 10, 1ms period, 0 offset. but instead i get this:

Im not understanding where these intermadiate values are coming from. The first cycle seems to be correct but all other cycles are incorrect

Answer 1

[Mathieu NOE]

hello

this is probably due to your choice of solver - what are your options ?

I opted for a fixed (discrete) sampling with sampling interval = T/100 to get enough samples per period (otherwise you may end up with strange distorted signal)