Having trouble plotting function

>> t = linspace(0,0.001,1);

>> i = 0.015+exp(-10000*t)(-0.01*cos(20000*t)-0.0025*sin(20000*t));

Error: Invalid array indexing.

New to MATLAB, trying to plot a graph but function gets interpreted as array.

Answer 1

[KSSV]

t = linspace(0,0.001);
F = 0.015+exp(-10000*t).*(-0.01*cos(20000*t)-0.0025*sin(20000*t));  %<-- you missed .*
plot(t,F)