nint function in Bubble Column Reactor Model

Hi,

I got this complete code on bubble column reactor model with population balance. While running the code I found that the following

nint() in line 34 and on several lines has been called. However, no such function is given neither do Matlab gives any reference to understand what does this function do and why it is giving an error.

Request to kindly help.

I have attached the full code for reference.

Thank you.

SDS

[Torsten]

Contact the authors of the code. Or try to understand what is needed at the places where "nint" is used. Maybe it means "nearest integer" or "numerical integral", but it's just wild guessing.

[Sanjib]

Thank you.