Error: Colon operands must be real scalars.

I'm getting the below error in MATLAB R2025a that did not occur in R2024b or older version,

Error: Colon operands must be real scalars.

can i know why this is occurring?

Answer 1

[Steven Lord]

This was a deliberate change in release R2025a. See page 1-30 of the PDF Release Notes for MATLAB. We issued a warning that MATLAB would error in a future release when you called the colon operator with non-scalar inputs starting in release R2024a, see page 3-21 in that PDF document.