How to plot graph for below mention mathamatical equation
1 view (last 30 days)
Show older comments
ds/dt = A-BSI-(gamma+delta+theta+d)S
A=0.7
d=0.06
B=0.35
delta = 0.06
theta= 0.1
S= 20
I= 18
gamma = 0.1
and t= 50maximum
The graph is required to plot ds/dt or S(t) verses t .
3 Comments
Accepted Answer
Image Analyst
on 16 Feb 2020
Try this:
BSI = 1; % Just a guess since it was not specified.
% Define other constants that were given in the question.
A = 0.7
d = 0.06
B = 0.35
delta = 0.06
theta = 0.1
S = 20 % Capital S, not lower case s. It's a constant.
I = 18
gamma = 0.1
% The derivative (slope) is given as this constant:
dsdt = A-BSI-(gamma+delta+theta+d) * S
% Now integrate dsdt to get S as a function of t.
% First assume some t
t = linspace(-50, 50, 1000);
% Next assume some constant
someConstant = 10; % Whatever. I have no idea.
st = dsdt * t + someConstant;
% Taking the derivative of this st with respect to t will give dsdt.
% Now plot St.
plot(t, st, 'LineWidth', 2);
grid on;
xlabel('t', 'FontSize', 20);
ylabel('s(t)', 'FontSize', 20);
More Answers (0)
See Also
Categories
Find more on Graph and Network Algorithms 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!