Help plotting a while loop

Hey guys, I'm having trouble with this while loop. The plot will not show up. Thanks in advance

clc, clear all

y=0;

x=0;

e=2.718;

while y<=9.8

    y=y+(10*(1-e^(-x/4)))

    x=x+1;

end

x=linspace(0,4,5);

plot(x,y)

Answer 1

[rantunes]

Hey,

Notice that you are always updating a new value of x and y at each iteration, so in the end you have not a pair of vectors with values but just one pair of values.

Maybe something more like this?

y(1) = 0;
x(1) = 0;
i = 1;
e=2.718;

while y <= 9.8
    y(i+1) = y(i) + (10*(1-e^(-x(i)/4)));
    x(i+1) = x(i) + 1;
    i = i + 1;
end
plot(x,y)

Greets

[rantunes]

(just rephrasing a bit my first sentence. In the end you have one value for y and a row of values for x, due to the linspace, and I think is that what you dont want)