Hello there!
I am new to CL in Desmos. On slide 4 of the activity below, I want students to enter the coordinates for quadrilateral C’A’R’D’ and have the quadrilateral appear on the graph. I have tried many of the example CL’s given in the Computation Layer Discussion and have also tried some from a few activities I found in this forum. This might be a bit over my head right now but I would really like to figure this out.
The numberlists in your graph CL should be good enough. Use the polygon function in the graph. It’ll save you a lot of the other coding as well. polygon(X_1,Y_1)
polygon() will take a list of points, or separate lists for coordinates, and connect them in order to make a polygon. By default it’s filled with a solid border, but you can change those options using the colored triangle to the left. You can also perform operations on your lists, so target answers for a translation could be something like this in your graph:
X_a=X_0+5
Y_a=Y_0-2
where X_a is the new x-coordinates translated 5 right, and Y_a down 2.
Thanks for the polygon suggestion. I am going to try that out.
I thought the number lists would be good enough, too. But I can’t seem to get the CL to read the lists. I assumed the 2 and the 3 at the end of the CL referred to the columns in table2. Or maybe I have “x” and “y” labelled incorrectly after the number list.
Didn’t notice that. You don’t want to use x and y because those are the standard variables for the graph making a conflict. Try using capitals or different letters entirely.