great trouble with RMS value

how can i get the RMS value of a sine wave simulink block (as a scaler)? i am badly in need of it, please somebody reply

Answer 1

[Thomas]

I cant say about simulink but with MATLAB and the dsp toolbox

doc dsp.rms

http://www.mathworks.com/help/toolbox/dsp/ref/dsp.rmsclass.html

[saima]

i need to use simulink

[K E]

The DSP System Toolbox for Simulink has a RMS block, http://www.mathworks.com/help/toolbox/dsp/ref/rms.html