plot w=exp(-x/0.3042) (when 0<w<1)

i want to plot w=exp(-x/0.3042) (when 0<w<1)

and i also want to plot the graph of x when 0<w<1

but it constantly error. thanks for reading

Answer 1

[Torsten]

Here is an example:

x = linspace(0,1,10);
f = @(x) x.^2;
plot(x,f(x))

If you want to learn MATLAB basics, invest two hours of your time and pass the free online tutorial:

https://matlabacademy.mathworks.com/details/matlab-onramp/gettingstarted

[haeri]

thank you for your links. it is very helpful.

Answer 2

[VBBV]

w=@(x) exp(-x/0.3042)

w = function_handle with value:
    @(x)exp(-x/0.3042)

fplot(w,[0 1])

[VBBV]

you can rearrange the equation and use same function, fplot as shown earlier

 x = @(w) -log(w)*0.3042

x = function_handle with value:
    @(w)-log(w)*0.3042

 fplot(x,[0 1])

[haeri]

thanks for your help!!!!!

Answer 3

[Sam Chak]

Hi @haeri

The plotting is merely a basic skill that you can learn in MATLAB Onramp. More importantly, you need to know some properties of the exponential decay function before plotting it over the range .

In fact, there is a difference between plotting over and over .

When , .

When , .

x = linspace(0, 5, 1001);
w = exp(-x/0.3042);
plot(x, w), grid on, xlabel('x'), ylabel('w')

w(end)  % w(x = 5)

ans = 7.2727e-08

The value of is very small, but it is not absolute zero... yet.