I was trying to plot a sine wave in matlab but it keeps on showing this error: undefined function or method 'sin' for input types of argument 'char'
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John Chilleri on 22 Jan 2017
Edited: John Chilleri on 22 Jan 2017
You have a colon after t = 0.0:0.001:10: <-
t = 0:0.001:10;
x = sin(4*pi*t);
The above code works for me.
Also, make sure you haven't used pi as a variable name. My guess is that you have assigned a string or character to pi.
Hope this helps!