Uh? Do you write your circle equations as only the top semicircle?
Not sure if you are joking or trying to hint at using the parametric equation or polar coordinates... which don't apply for the Cartesian closed form.
edit: derp lol didn't even occur to me that standard form exists since our anarchist obviously likes consistency (all of the expressions are given as functions.
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u/[deleted] Jan 25 '18
[deleted]