Asked by Harris
on 16 Jan 2013

x=linspace(-4,8,500); y=(square((x*(3/2)+3))); t=(sawtooth((x*(3/2)+3))); v=[-4 8 0 2]; s=(3/2)/2; for n=1:3 a=-(2)/(n^(2)*pi^2); b=-(1)/(n*pi); s=s+a*cos((n*pi*x)/2)+b*sin((n*pi*x)/2); figure(1),subplot(2,2,n),plot(x,y,x,s,x,t),axis(v) end

The above is what I have so far, and it looks sort of how I want it to look, except I want it to not have a line because of the use a mix of sawtooth and square waves to make it look like a proper trapezoidal wave. Also it should be periodic T+4 as opposed to 2pi periodic as sawtooth and square functions have as standard.

Any help is greatly appreciated.

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