fix(utils): fix pow for negative exponent #249
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fix pow for negative exponent
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note that the pow test uses 12 as the order. A field with a non-prime order may not have an inverse for every element in the set. |
cedoor
approved these changes
Apr 18, 2024
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powfn comment says it handles negative exponent but it doesn't. This PR fixes it. Here's the reasoning behind the fix:So
pow(a, -e) == pow(inv(a), e)