How to plot an integral
284 views (last 30 days)
Show older comments
Marina Gonzalez
on 15 Jun 2019
Answered: Star Strider
on 15 Jun 2019
Hello!
I need some help plotting the following:
This is what I have:
syms x
kw = 91371;
CaO= 1.81*10^(-4);
FaO= 0.1233;
K = 1.29;
fun =FaO*((1+K*CaO*(1-x))/(kw*CaO*(1-x)))
W=int(fun);
fplot(W,[0 1
But nothing comes out on the graph. I want to plot W on the Y-axis and x on the X-axis, between 0 and 1 (because it's a conversion in chemistry).
Does anyone know what I'm doing wrong?
5 Comments
Walter Roberson
on 15 Jun 2019
In this calculation W is imaginary below 2.0007245246191665436401515314702
Accepted Answer
Star Strider
on 15 Jun 2019
‘But nothing comes out on the graph.’
The result of the int function is a constant. At best, you will get a straight line.
I am not certain what you want. You can get it to plot as a function of the upper limit of integration by creating a function from it:
syms x a
kw = 91371;
CaO= 1.81*10^(-4);
FaO= 0.1233;
K = 1.29;
fun = FaO*((1+K*CaO*(1-x))/(kw*CaO*(1-x)));
W(a) = int(fun, x, 0, a);
fplot(W,[0 1])
0 Comments
More Answers (0)
See Also
Categories
Find more on Line Plots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!