T(x,y)

1

y

x

A = Intersect(xAxis, yAxis)
B = Point(xAxis)
c = Circle(A, B)
T = Point(c)
a = Segment(A, T)
b = OrthogonalLine(T, xAxis)
d = OrthogonalLine(T, yAxis)
C = Intersect(b, xAxis)
e = Segment(T, C)
D = Intersect(d, yAxis)
f = Segment(T, D)
g = Segment(A, C)
α = Angle(C, A, T)
tekst2: "sinα=" + e
tekst3: "cosα=" + g