Solving using Euler method

time_step= 0.005; time=0:time_step:0.2;

y(1)=0;

for x=1:length(time)-1, E=50-20*y(i); y(i+1)=y(i)+E*time_step; end plot(time,y)

im having problem with the coding... there's error in these but im unsure what the error is, can some1 please explain...

**Subscript indices must either be real positive integers or logicals. for x=1:length(time)-1, E=50-20*y(i);

Answer 1

[Matt Fig]

What is 'i'? In MATLAB , 'i' and 'j' are functions. This is one reason why it is recommended not to use them as loop indices.

Where in your code do you assign 'i'?