Hi, I have a list of lines with slopes and Y-intercepts. I'd like to identify all the parralell lines (equal slopes) and copy a few bits of info from those rows to another part of the page. See the highlighted areas in the attached file.
I take it I'll need a macro but how do I filter for duplicates first? Would I used the advanced Filter? What would the Criteria for the Criteria Range be?
Any ideas?
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