Mary had a little lamb

lab2.sce

rate = 8000
freqs = [494 440 392 440 494 494 494]
x = 0:1/rate:3.5
y = zeros(x)
range = 1:4001

for i = 1:length(freqs)
    y(range) = exp(-10 * x(range) + 5 * (i - 1)) .* sin(2 * %pi * freqs(i) * x(range))
    range = range + 4000
end

clf()
plot2d3(x, y)