極座標と直交座標の変換を見てみましょう。\

A = (1.6657663977629986, 1.4571694769060801)
B = Intersect(xAxis, yAxis)
f = Segment(B, A)
C = Point(xAxis)
α = Angle(C, B, A)
D: (x(A), 0)
E: (0, y(A))
g = Segment(A, D)
h = Segment(A, E)
F = Midpoint(A, B)
i = OrthogonalLine(F, f)
G = Point(i)
c = Circle(F, G)
d = CircumcircleArc(A, G, B)
text1: "r=" + (LaTeX[Distance[A, B]]) + ""
text2: "\theta=" + (LaTeX[α]) + ""
text3: "" + (LaTeX[x(A)]) + ""
text4: "" + (LaTeX[y(A)]) + ""
text6: "\blue{極座標表示：\ \ \ \ (r,\theta)=(" + (LaTeX[Distance[A, B]]) + " ," + (LaTeX[α]) + " )}\\
\red{直交座標表示：\ (x,y)=(" + (LaTeX[x(A)]) + " ," + (LaTeX[y(A)]) + " )}"

Tool: Tool1
Input: A
Output: h, g

B: (x(A), 0)
C: (0, y(A))
g = Segment(A, C)
h = Segment(A, B)