Array indices must be positive integers or logical values for loop expression

i do not know why but when I run this I get the error that array indicies must be positive, it is , isnt it ? Please help thanks

Nu = 300; % nu of samples

N = 700; % number of learning samp0les

D = 5; % some constant

cdot(1) = [100];

Co(1) = 10;

% initialize

%first derivate

x = [1.2 1.23 1.55 1.6 1.66 1.85 1.9 1.92 1.95 1.9544.....

1.9611 1.9626 1.9788 1.98 1.9822 1.9855 1.9899 1.925];

t = 1:60;

for i =0:100

cdot(i+1) = cdot(i) - Co(i) + (0.25*x./sqrt(D.*t(i)) + 0.5 ./ sqrt(D.*t(i)) ) .* exp(0.5.*x./sqrt(D.*t(i)));

end

Answer 1

[TADA]

in Matlab array indices start from 1, not 0 like other languages.

You have more bugs in this script, but this error is due to starting your loop index from zero instead of 1

[SL]

thank you , appreciate it

Answer 2

[Image Analyst]

It's thoroughly discussed in the FAQ:

https://matlab.fandom.com/wiki/FAQ#.22Subscript_indices_must_either_be_real_positive_integers_or_logicals..22