Ellipse Perimeter (Ramanujan) from Semi-Axes: 30 units Semi-major Axis; 15 units Semi-minor Axis
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30 units Semi-major Axis; 15 units Semi-minor Axis converts to
145.326723 units
Use this as a quick reference for Ellipse Perimeter (Ramanujan) from Semi-Axes.
Value Details
Input: 30 units Semi-major Axis; 15 units Semi-minor Axis
Output: 145.326723 units
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Ellipse Perimeter (Ramanujan) from Semi-Axes
Approximate ellipse perimeter from semi-major and semi-minor axes using Ramanujan’s formula.
Calculated Result
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Frequently Asked Questions
Common questions about Ellipse Perimeter (Ramanujan) from Semi-Axes, formulas, and expected usage.
What does the Ellipse Perimeter (Ramanujan) from Semi-Axes calculator do?
It helps with estimating ellipse perimeter for layout, design, and engineering approximations.
What formula does the Ellipse Perimeter (Ramanujan) from Semi-Axes calculator use?
Ramanujan approximation: P ≈ π(a+b)[1 + 3h/(10 + √(4-3h))], where h=((a-b)²/(a+b)²).
What inputs are valid?
Semi-axes must be non-negative, the semi-minor axis cannot exceed the semi-major axis, and not both can be zero.
When would I use this?
estimating ellipse perimeter for layout, design, and engineering approximations
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Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.