Dear Community,

I am following the attached article for calculating the DOE sag.

https://support.zemax.com/hc/en-us/articles/1500005487741-How-to-calculate-the-sag-of-a-diffractive-optical-element-with-a-macro

The meaning of term “int” is not mentioned in the equation for DOE sag. What does this term means?

Though I got the attached “.zpl” file which is working fine, but still DOE sag equation has to be executed in excel or some other tool like matlab.

Thanks.