Model II regression should be used when the two variables in the regression equation are random and subject to error, i.e. not controlled by the researcher. Model I regression using ordinary least squares underestimates the slope of the linear relationship between the variables when they both contain error. According to Sokal and Rohlf (1995), the subject of Model II regression is one on which research and controversy are continuing and...
There are two components in this group. 1. Hohmann Transfer Example: This simulation starts with a craft/satellite in low earth orbit. A Hohmann Transfer is initiated to a 'random' destination altitude. This includes the delta V to move to a...
This is a modified version of an iterative algorithm published by D. Eberly. Internet publication: "Distance from a point to an ellipse in 2D" (2004) Geometric Tools, LLC, www.geometrictools.com Book publication: "3D...
function plot_ellipse(a,b,cx,cy,angle,color) %a: width in pixels %b: height in pixels %cx: horizontal center %cy: vertical center %angle: orientation ellipse in degrees %color: color code (e.g., 'r' or [0.4 0.5 0.1])
ELLIPSEDRAW can draw an arbitrary ellipse with given parameters. The properties of that ellipse plot can be customized by setting the ellipse handle.
the given program is generation of ellipse and rotating it with respect to center...... can anyone provide me a program for rotatin the ellipse with respect to its focus...??
This is a fast non-iterative ellipse fit, and among fast non-iterative ellipse fits this is the most accurate and robust.
It takes the xy-coordinates of data points, and returns the coefficients of the equation of the ellipse:
This zip file contains 2 functions to transform generic (nD) quadratic hyper-surfaces from homogeneous form (that is [x' 1]*E*[x;1]=0) to center form (that is (x'-c')*inv(Q)*(x-c)=1, which is used for example in the ellipsoidal toolbox).
For more info: http://www.pigei.com/conics-intersection
The homogeneous representation of a conic is a matrix m = [A C D; C B E; D E F] that represents the equation A x^2 + B y^2 + 2C xy + 2D x + 2Ey + F = 0
Draws a circle or ellipse on a RGB image. can be used to insert circles into movies. Includes a little animation demo that demonstrates the use.
This is a fast and non-iterative ellipse fit. Usage:
A = EllipseDirectFit(XY)
Input: XY(n,2) is the array of coordinates of n points x(i)=XY(i,1), y(i)=XY(i,2)
Output: A = [a b c d e f]' is the vector...
This program implements the iterative algorithm in Khachiyan's paper "Rounding of Polytopes in the Real Number Model of Computation" to approximate the minimum volume ellipsoid circumscribing a non-degenerate set of points in arbitrary...
Consists of two tidal ellipse conversion programs
Tested under MATLAB Version 5.3.1.29215a (R11.1) on SOL2. |