add_base_tnumber add_tnumber_base add_tnumber_tnumber arithop_base_tnumber arithop_tnumber_base arithop_tnumber_base1 arithop_tnumber_tnumber datum_degrees datum_round div_base_tnumber div_tnumber_base div_tnumber_tnumber mult_base_tnumber mult_tnumber_base mult_tnumber_tnumber sub_base_tnumber sub_tnumber_base sub_tnumber_tnumber tnumber_arithop_tp_at_timestamp tnumber_arithop_tp_at_timestamp1 tnumber_degrees tnumber_derivative tnumber_div_tp_at_timestamp tnumber_mult_tp_at_timestamp tnumber_round tnumberseq_derivative tnumberseqset_derivative

tnumber_derivative() PGDLLEXPORT Datum tnumber_derivative ( PG_FUNCTION_ARGS  ) Returns the derivative of the temporal number.