forked from kscience/kmath
fixes to power
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@ -108,9 +108,9 @@ public fun <T, S> Sequence<T>.averageWith(space: S): T where S : Ring<T>, S : Sc
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* @author Evgeniy Zhelenskiy
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*/
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public fun <T> Ring<T>.power(arg: T, power: UInt): T = when {
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this == zero && power > 0U -> zero
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this == one -> arg
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this == -one -> powWithoutOptimization(arg, power % 2U)
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arg == zero && power > 0U -> zero
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arg == one -> arg
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arg == -one -> powWithoutOptimization(arg, power % 2U)
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else -> powWithoutOptimization(arg, power)
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}
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@ -135,7 +135,7 @@ private fun <T> Ring<T>.powWithoutOptimization(base: T, exponent: UInt): T = whe
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* @return the base raised to the power.
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* @author Iaroslav Postovalov, Evgeniy Zhelenskiy
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*/
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public fun <T> Field<T>.power(arg: T, power: Int): T = when {
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power < 0 -> one / (this as Ring<T>).power(arg, if (power == Int.MIN_VALUE) Int.MAX_VALUE.toUInt().inc() else (-power).toUInt())
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else -> (this as Ring<T>).power(arg, power.toUInt())
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public fun <T> Field<T>.power(arg: T, power: UInt): T = when {
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power < 0 -> one / (this as Ring<T>).power(arg, power)
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else -> (this as Ring<T>).power(arg, power)
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}
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