Plotting multiple piecewise functions onto the same graph
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Margherita Carlon
el 21 de Ag. de 2019
Comentada: Star Strider
el 22 de Ag. de 2019
Hi!
I'm new to the program and i've been trying to plot two piecewise functions,
y(x) = piecewise(0<x<1.85, sin(523.26*pi*x), 1.85<x<3.7, 0, 3.7<x<5.55, sin(523.26*pi*x), 5.55<x<7.4, 0, 7.4<x<9.25, sin(523.26*pi*x));
and
y2(x) = piecewise(0<x<1.63, sin(463.08*pi*x), 1.63<x<3.26, 0, 3.26<x<4.89, sin(463.08*pi*x), 4.89<x<6.52, 0, 6.52<x<8.15, sin(463.08*pi*x));
onto the same graph, but i can't get the coding right. Would anyone be able to help?
Thank you so much in advance
2 comentarios
Respuesta aceptada
Star Strider
el 21 de Ag. de 2019
I coded and ran ‘y1’ as:
y1 = @(x) ((0<x) & (x<1.85)).*sin(523.26*pi*x) + ((1.85<x) & (x<3.7)).*0 + ((3.7<x) & (x<5.55)).*sin(523.26*pi*x) + ((5.55<x) & (x<7.4)).*0 + ((7.4<x) & (x<9.25)).*sin(523.26*pi*x);
t = linspace(-5, 20, 500);
figure
plot(t, y1(t))
grid
Do the same for ‘y2’. Choose as many points as you want for ‘t’.
4 comentarios
Star Strider
el 22 de Ag. de 2019
Change the third argument in the linspace function to change the number of points it creates. (The default number is 100.) See the documentation section on Vector with Specified Number of Values.
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