for loop isn't working and I dont Know what i am doing wrong

I am new to coding and matlab in general, what are the initial parameters I need to set?

Answer 1

[Ahmed Redissi]

First, initialize the variable you are going to use to store the sum to zero. Then iterate over the values of t and increment the value of F with the given expression for each value of t. See the code below:

F = 0;
for t = 1:1000
    F = F+((1/4)^t)-((1/5)^t);
end