# Coordinates of a poinr

If I have a point, p_3 say, is there any way of accessing its x and y coordinates?

The best thing would be if you define p_3 in terms of the coordinates (a, b) within the graph.

Then you could extract the numbers a and b from the graph using this.number(â€śaâ€ť) and this.number(â€śbâ€ť) respectively.

(Assuming the CL code is within the graph, otherwise use graph_name.number(â€śaâ€ť) and graph_name.number(â€śbâ€ť)).

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You can access the x and y coordinates of any named point:
https://www.desmos.com/calculator/ylwksoxbgo
Youâ€™ll have to assign a variable to the coordinates in order to pull it into CL so for simple movable points Brynâ€™s example works well, but if your point is based on something else in the graph (i.e. a complicated expression) using .x and .y is a great idea.

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Thanks. Thatâ€™s exactly what I was looking for.

And I can pass the point into a function, which is what I was hoping. That will tidy things up immensely.

Thanks Bryn. I was figuring I would need something along those lines eventually, but I havenâ€™t got to the CL bit yet - still figuring out how to build the graph I want.

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I had forgotten all about this functionality in the calculator proper (if indeed I ever knew about it; I have a distant memory of some interaction on Twitter but it might have just been asking for the feature of extracting components of a point).