How to calculate the RMS of a waveform

Hi there,
I haven´t worked with signal analysis yet, I need to calculate the RMS of the signal shown on the graph in the attached VI.
I don´t need a final solution, just some hints or tipps...!
Thank you in advance!
Attachments:
RMS.vi ‏36 KB

The frequency of your signal is not proportional to your sampling frequency (the division is 10.07), so I guess this may have some errors, but I think it can get you started.
Paulo
Attachments:
RMS[1].vi ‏67 KB

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How to calculate the RMS of a waveform

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