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B. Unit Slope Ramp function
function y=rampf(x)
global aramp
if x<aramp
y=0;
else
y=x-aramp;
end

C. Unit Area Rectangle function
function y=rectf(x)
global lrect hrect
if x<lrect
y=0
elseif lrect<x & x<hrect
y=1/(hrect-lrect);
else
y=0;
end

D. Unit Slope Right Angle Triangle function
function y=sawtf(x)
global lsawt hsawt
if x<lsawt
y=0;
elseif lsawt<x & x<hsawt
y=x-lsawt;
else
y=0;
end

E. Equilateral Triangle function
function y=triaf(x)
global ltria htria
if x<ltria
y=0;
elseif ltra<x & x<(ltria+htria)/2

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