Author: GG

A_{21} = 1.2000000000000002 (slider from -5 to 5, step 0.1)
A_{12} = 0.9000000000000004 (slider from -5 to 5, step 0.1)
A_{11} = 1.6000000000000005 (slider from -5 to 5, step 0.1)
A_{22} = -0.1999999999999993 (slider from -5 to 5, step 0.1)
MatrixA: "A=\left[\begin{array}{cc}" + A_{11} + "&" + A_{12} + "\\" + A_{21} + "&" + A_{22} + "\end{array}\right]"
Orig = Intersect(xAxis, yAxis)
B = (1, 0)
c = Circle(Orig, B)
V = Point(c)
AV: (A_{11} x(V) + A_{12} y(V), A_{21} x(V) + A_{22} y(V))
text1: "\lambda=" + (x(AV) x(V) + y(AV) y(V)) + "\quad V=\left[\begin{array}{c}" + (x(V)) + "\\" + (y(V)) + "\end{array}\right]"
u = Vector(Orig, AV)
v = Vector(Orig, V)