Same Y-axis but two X-axis

Hi ! I wish to have this code with two X-axis...

clc
clear all

x=-4:0.1:4;
y=sin(2*x);

plot(x,y)
grid on
figure
x2=-0.4:0.01:0.4;
y2=sin(20*x2);
plot(x2,y2)
grid on

I searched about it and found some topics but it was not easy. How can I have two X-axis ?

Answer 1

[Ameer Hamza]

Try this

x1 = -4:0.1:4;
y1 = sin(2*x1);

x2 = -0.4:0.01:0.4;
y2 = sin(20*x2);


f = figure();
ax1 = axes();
hold(ax1);
grid on
ax1.XLim = [-4 4];
ax1.YLim = [-1.5 1.5];
plot(x1, y1, 'r')

ax2 = axes('Position', ax1.Position);
hold(ax2);
ax2.Position = ax1.Position;
ax2.Color = 'none';
ax2.XAxis.Visible = 'off';
ax2.YAxis.Visible = 'off';
ax2.XLim = [-4 4];
ax2.YLim = [-1.5 1.5];
plot(x2, y2, 'b')