error: Array indices must be positive integers or logic

please help

Answer 1

[VBBV]

y(i) = y(i) + 1;

instead of

y(II) = y(II) + 1;

[VBBV]

The value of II may be a floatpoint number. MATLAB uses integer and 1 based indexing for accessing array elements

[Kayla Garcia]

thank you for the response. i have changed it and it is still giving me the same error message.

Answer 2

[Walter Roberson]

Due to floating point round-off, the result A+(B*x(i)) might not be exactly an integer. You should round() it.

[Kayla Garcia]

when i try round() i recieve a different message

[Walter Roberson]

You have not posted enough context to really give you an answer.

But I suspect that you should have made x one element shorter. Something along the line of

x = linspace(xmin, xmax, number_of_steps+1);
x = x(1:end-1);