how to plot v-t graph for v=v0(e^-kt)?

how to set variables for v0 and k?

Answer 1

[Davide Masiello]

Try this

clear,clc

v0 = 1;
k  = 1;
t  = linspace(0,10,100);
v  = v0*exp(-k*t);

figure
plot(t,v)

Answer 2

[Sam Chak]

Hi @현규 강

The method posted by @Davide Masiello is proper. Alternatively, if you want a quick plot to view, then you can do this:

v0 = 3;     % initial value
k  = 2;     % inverse of time constant (tau = 0.5), that's why it converges at 5*tau = 2.5 sec
fplot(@(t) v0*exp(-k*t), [0 5]);