Exemples
f = figure();
X = linspace(-pi, pi) * 2;
Y1 = cos(X) .* exp(-2 * X);
Y2 = cos(X * 2) .* exp(-2 * X);
Y3 = cos(X * 3) .* exp(-2 * X);
Y4 = cos(X * 4) .* exp(-2 * X);
subplot(4, 1, 1)
plot(X, Y1,'b');
subplot(4, 1, 2)
plot(X, Y2, 'r');
subplot(4, 1, 3);
plot(X, Y3, 'g');
subplot(4, 1, 4);
plot(X, Y4, 'k');
f = figure();
t = 0 : (2 * pi/100) : (2 * pi);
X = cos(t * 2) .* (2 + sin(t * 3) * 0.3);
Y = sin(t * 2) .* (2 + sin(t * 3) * 0.3);
Z = cos(t * 3) * 0.3;
subplot(2, 2, 1)
surf(peaks());
axis equal
view(3)
subplot(2, 2, 2);
plot(t, X);
subplot(2, 2, 3);
plot(t, Y);
subplot(2, 2, 4);
plot(t, Z);