14 October 2022 10:17:48 PM

ellipse_test():
  C version
  Test ellipse().

ellipse_area1_test():
  ellipse_area1() computes the area of an ellipse.

  R = 10

  Matrix A in ellipse definition x*A*x=r^2:
    [ 5  1 ]
    [ 2  2 ]
  Area = 104.72

ellipse_area2_test():
  ellipse_area2() computes the area of an ellipse.

  Ellipse: 5 * x^2 + 2 * xy + 2 * y^2 = 10
  Area = 104.72

ellipse_area3_test():
  ellipse_area3() computes the area of an ellipse.

  Ellipse: (x/10)^2 + (y/3.33333)^2 = 1
  Area = 104.72

ellipse_aspect_ratio_test():
  ellipse_aspect_ratio() computes the aspect ratio of an ellipse.

      A      B      Ratio

    1.0    0.0    0.000000
    1.0    0.1    0.100000
    1.0    0.2    0.200000
    1.0    0.3    0.300000
    1.0    0.4    0.400000
    1.0    0.5    0.500000
    1.0    0.6    0.600000
    1.0    0.7    0.700000
    1.0    0.8    0.800000
    1.0    0.9    0.900000
    1.0    1.0    1.000000

ellipse_eccentricity_test():
  ellipse_eccentricity() computes the eccentricity of an ellipse.

      A      B      Ecc

    1.0    0.0    1.000000
    1.0    0.1    0.994987
    1.0    0.2    0.979796
    1.0    0.3    0.953939
    1.0    0.4    0.916515
    1.0    0.5    0.866025
    1.0    0.6    0.800000
    1.0    0.7    0.714143
    1.0    0.8    0.600000
    1.0    0.9    0.435890
    1.0    1.0    0.000000

ellipse_flattening_test():
  ellipse_flattening() computes the flattening of an ellipse.

      A      B      Flat

    1.0    0.0    1.000000
    1.0    0.1    0.900000
    1.0    0.2    0.800000
    1.0    0.3    0.700000
    1.0    0.4    0.600000
    1.0    0.5    0.500000
    1.0    0.6    0.400000
    1.0    0.7    0.300000
    1.0    0.8    0.200000
    1.0    0.9    0.100000
    1.0    1.0    0.000000

ellipse_test():
  Normal end of execution.

14 October 2022 10:17:48 PM