MATLAB: How do i Fixed not enough input arguments in this equation

advanced graphingMATLAB

z=A*exp^(-(R9/2*m)*t)*cos(2*pi()*V_t*t+B);

A=1;
B=4;
R9=10;m=3;
V_t=7;
t=0:.01:1;
z=A*exp(-(R9/2*m)*t).*cos(2*pi()*V_t*t+B);

The erroir is that ‘dv’ must be defined as a function of one variable, and it is not defined as a function at all.

What variable do you want to integrate it with respect to?

m = @(t) cos(2*pi*9*t) .* ((t > 0 ) & (t < 3));
t = linspace(-1, 4, 500);
Out = m(t);
figure(1)
plot(t, Out)
grid