Ellipse Standard Form Equation:
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The standard form equation of an ellipse describes its geometric properties including center, axes lengths, and orientation. It's fundamental in geometry, physics, and engineering applications involving elliptical shapes.
The calculator uses the standard form equation:
Where:
Explanation: The equation represents all points (x,y) that lie on the ellipse centered at (h,k) with given axis lengths.
Details: The standard form is essential for analyzing elliptical orbits in astronomy, designing optical systems, architectural structures, and solving various physics problems involving elliptical motion.
Tips: Enter the center coordinates (h,k) and the lengths of semi-major (a) and semi-minor (b) axes. All axis lengths must be positive numbers.
Q1: What if a equals b?
A: When a = b, the ellipse becomes a circle with radius equal to a (or b).
Q2: How to determine which axis is major?
A: The major axis is the longer of the two axes (greater between a and b).
Q3: Can the calculator handle vertical ellipses?
A: Yes, the standard form works for both horizontal and vertical ellipses - just enter the correct a (semi-major) and b (semi-minor) values.
Q4: What are the foci of the ellipse?
A: Foci are located along the major axis at distance c from center, where c² = a² - b².
Q5: How is eccentricity calculated?
A: Eccentricity e = √(1 - (b²/a²)) for a horizontal ellipse, where 0 ≤ e < 1.