I have a question regarding time dependent loop, as I want to have a variable changing with time in the loop from 0 to 30

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gamma(t) =4-(6/90*t);

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Ameer Hamza
Ameer Hamza 2020-4-9
编辑:Ameer Hamza 2020-4-10
Without loop:
t = linspace(0,30,100); % create 100 points between 0 and 30
gamma = 4-(6/90*t);
Using for loop:
t = linspace(0,30,100);
gamma = zeros(size(t));
for i=1:numel(t)
gamma(i) = 4-(6/90*t(i));
end
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Fae ba
Fae ba 2020-4-10
编辑:Fae ba 2020-4-10
I want to develope the code to the case where the gamma is changes in every loop iteration by assuming that x is changing between 0 and 5, then how can I plot (x, c1) wrt to three cases of gamma for a fixed point eg t = 5? I define f (t) and v1, v2 and c1 just for the first case, is there any way to define the same for the two other case where there are gammaB and gammaC with the same formula? this is the primary code:
r = 0.02;
mu = 0.08;
sigma = 0.2;
T = 30;
rho = 0.02;
for x = 0: 1: 5
t = 5;
gammaA (i) = 4;
gammaB (j) = 5+ (0.07 * t (j));
gammaC (k) = 5- (0.07 * t (k));
for i = 0:30
f1 = (exp (-rho * t) / gammaA (i)) * exp (((1-gammaA (i)) / gammaA (i)) * (r + (mu - r) ^ 2 / (2 * sigma ^ 2 * gammaA (i))) * (T - t));
v1 = (f1. ^ gammaA (i)). * (x. ^ - gammaA (i));
C1 = exp (-rho * t / gammaA (i)) * (v1. ^ (-1 / gammaA (i)));
end
for j = 0:30
f2 = (exp (-rho * t) / gammaB (j)) * exp (((1-gammaB (j)) / gammaB (j)) * (r + (mu - r) ^ 2 / (2 * sigma ^ 2 * gammaB (j))) * (T - t));
v2 = (f2 ^ gammaB (j)) * (x. ^ - gammaB (j));
C2 = exp (-rho * t / gammaB (j)) * (v2. ^ (-1 / gammaB (j)));
end
for k = 0:30
f3 = (exp (-rho * t) / gammaC (k)) * exp (((1-gammaC (k)) / gammaC (k)) * (r + (mu - r) ^ 2 / (2 * sigma ^ 2 * gammaC (k))) * (T - t));
v3 = (f3 ^ gammaC (k)) * (x. ^ - gammaC (k));
C3 = exp (-rho * t / gammaC (k)) * (v3. ^ (- 1 / gammaC (k)));
end
set (0, 'DefaultAxesColorOrder', [0 0 0], 'DefaultAxesLineStyleOrder', '- | -. | -')
hold on
plot (x, c1, x, c2, x, c3)
legend ('gammaA', 'gammaB', 'gammaC')
hold off

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