#
val arith_status : unit -> unit
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val get_error_when_null_denominator : unit -> bool
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val set_error_when_null_denominator : bool -> unit
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val get_normalize_ratio : unit -> bool
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val set_normalize_ratio : bool -> unit
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val get_normalize_ratio_when_printing : unit -> bool
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val set_normalize_ratio_when_printing : bool -> unit
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val get_approx_printing : unit -> bool
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val set_approx_printing : bool -> unit
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val get_floating_precision : unit -> int
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val set_floating_precision : int -> unit