45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
// Package uniswap provides mathematical functions for Uniswap V3 calculations.
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package uniswap
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import "math/big"
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// SqrtPriceX96ToPriceCached converts sqrtPriceX96 to a price using cached constants.
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func SqrtPriceX96ToPriceCached(sqrtPriceX96 *big.Int) *big.Float {
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// Initialize cached constants
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initConstants()
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// price = (sqrtPriceX96 / 2^96)^2
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// price = sqrtPriceX96^2 / 2^192
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// Convert to big.Float for precision
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sqrtPrice := new(big.Float).SetInt(sqrtPriceX96)
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// Calculate sqrtPrice^2
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price := new(big.Float).Mul(sqrtPrice, sqrtPrice)
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// Divide by 2^192 using cached constant
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price.Quo(price, GetQ192Float())
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return price
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}
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// PriceToSqrtPriceX96Cached converts a price to sqrtPriceX96 using cached constants.
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func PriceToSqrtPriceX96Cached(price *big.Float) *big.Int {
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// Initialize cached constants
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initConstants()
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// sqrtPriceX96 = sqrt(price) * 2^96
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// Calculate sqrt(price)
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sqrtPrice := new(big.Float).Sqrt(price)
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// Multiply by 2^96 using cached constant
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sqrtPrice.Mul(sqrtPrice, GetQ96Float())
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// Convert to big.Int
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sqrtPriceX96 := new(big.Int)
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sqrtPrice.Int(sqrtPriceX96)
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return sqrtPriceX96
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}
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