Erratic Intersect behavior

Download0091 shared this question 7 years ago
Answered

Hello,


The attached worksheet shows some peculiar behavior of the Intersect command, as well as some unexpected naming behavior. In the attached worksheet, it is not possible to name the intersection point "F" but a free point (or some other object) can be named "F".


John.


https://ggbm.at/2591927

Comments (2)

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1

Hi John,


Use in this case (with maximal one intersection) this:

F = Element[{Intersect[j, e]}, 1]


Raymond


PS

At Intersect[], it is advantageous always to be applied "{}"

photo
1

Hi Raymond,


PS

At Intersect[], it is advantageous always to be applied "{}"


Good thing to know :-)


That trick about F = Element.... at least created a variable named F instead of F_something. I still got "undefined" as the result. F_1 gets a result, F_2 and F get "undefined" ... difficult to figure out a workaround that is reliable.


Thank you.... at least I'm getting the right variable name now.


John.

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