I have a custom answer checker that is failing, basically because of machine rounding error. I believe I could make the checker work if I could use perl floating reals that had more precision than what is there by default. The checker uses a lot of recursive steps and the rounding error is increasing with each step, causing trouble sometimes.
So is there any way to implement a floating real with more precision within PG?
Is there a way to use something like Math::BigFloat?
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