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trigonometric interpolation polynomial
trigonometric leveling
trigonometric leveling network
trigonometric measurement
trigonometric moment
trigonometric moment problem
trigonometric parallax
trigonometric polynomial
trigonometric power formula
trigonometric problem
trigonometric product formula
trigonometric pseudo-spectral method
trigonometric ratio
trigonometric regression
trigonometric representation
trigonometric series
trigonometric series formula
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trigonometric spline
trigonometric substitution
trigonometric sum
trigonometric-sum estimate
trigonometric system
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trigonometric weight
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