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XY Text Writer

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Uses the 33522A waveform generator to write text on scope screen. Turns scope into message board.

Letter_I()
function [y x] = Letter_I()
	%Create the letter I
    [y1 x1] = Left_Vert_Line();
    x1 = x1 + .5;
    y2 = [.1 .1 .1 .1];
    x2 = [.2:.2:.8];
    y3 = [0 0 0 0];
    y3 = y3 + 2.55;
    x3 = [.2:.2:.8];
    y = [y1 y2 y3];
    x = [x1 x2 x3];
end

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