MATLAB: Using sin as part of a longer equation

sin

This is my example .5*exp(1).^(-1.2*t) *sin(10*pi*t). The first part works. But when I try to multiply by the sin of 10pi*t, it tells me that inner matrix don't agree. Any suggestions for how to input this information to get a result?

Best Answer

Use .* instead of *

Related Solutions

MATLAB: How can i plot this sin wave as shown

Very close, but the formula for a sine wave is Amplitude * sin(2*pi*x / period). If you do that, what do you get?

period = ??????;  % You do this.
t = linspace(-1, 3, 500);
s = sin(2 * pi * t / period);  % Now using the proper formula
plot(t,s, 'b-');
% Fancy up the graph, just for fun...
grid on;
% Plot Y axis
line([0,0], ylim, 'Color', 'k', 'LineWidth', 2);
% Plot x axis
line(xlim, [0,0], 'Color', 'k', 'LineWidth', 2);
yLabel('s', 'FontSize', 20);
xLabel('t', 'FontSize', 20);

MATLAB: Sin(x)^2

Use the rewrite function:

syms x 
ys = sin(x)^2;
ye = rewrite(ys, 'exp')
yc = rewrite(expand(ye), 'cos')

p[roducing:

yc =
1/2 - cos(2*x)/2

Best Answer

Related Solutions

MATLAB: How can i plot this sin wave as shown

MATLAB: Sin(x)^2

Related Question