How to select one number from a loop. I want to calculate the time t when m5=99.9. when I run the program it doesn't show anything. I don't know how to print t from the time loop when m5=99.99

Question

Kashfia Mahin 2018-11-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/428829-how-to-select-one-number-from-a-loop-i-want-to-calculate-the-time-t-when-m5-99-9-when-i-run-the-pr

编辑： the cyclist 2018-11-8

dt = 0.01;       % Step size
tend = 50;       % End time
t = 0:dt:tend;   % Time vector
%Loop for m5 calculation
for i=1:(length(t)-1) 
     for j=1:length(i) 
         k1 = f5(t(i),m5(i)); 
         k2 = f5(t(i)+0.5*dt,m5(i)+0.5*dt*k1); 
         k3 = f5((t(i)+0.5*dt),(m5(i)+0.5*dt*k2)); 
         k4 = f5((t(i)+dt),(m5(i)+k3*dt)); 
     end
         m5(i+1) = m5(i) + (1/6)*(k1(j)+2*k2(j)+2*k3(j)+k4(j)).*dt;
         if m5==99.9
             break
                fprintf('%d',t(i))
            end