I've had this idea for a while, where one can draw a number of straight lines on a variable-sized grid (similar to Coordinator).
The coordinates for the endpoints and the equations for each line are listed dynamically (as shown in the diagram below).
Lastly, the intersections are also shown.
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The coordinates for the endpoints and the equations for each line are listed dynamically (as shown in the diagram below).
Lastly, the intersections are also shown.
[attach]


