structuralman124 10 Posted January 14, 2014 Share Posted January 14, 2014 Hello friendly CadTutor people, I am quite the novice with Autocad and do not know how to approach this problem. I have 2 different lines defined with x and y coordinates. I want a third line that uses the common x coordinate and a y coordinate that is the sum of the two coordinates. If this is possible, can i define which mathematical function i use so that i can add/subtract or even use a formula to define? Thanks very much for your time Further Notes: The example above is very simple. I have 2 complex curves that go into positive and negative values of y (speaking from a mathematical perspective). I need an easy way to intersect the complex curves at a specified interval and add them at each of those intervals. For example i may a sine function going inbetween pi and -pi over a distance equal to 2. I then need to split the curves in intervals of 0.1 and add them together. Quote Link to post Share on other sites

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