Add_number_tnumber Add_tnumber_number Add_tnumber_tnumber arithop_number_tnumber_ext arithop_tnumber_number_ext arithop_tnumber_tnumber_ext datum_round_float Div_number_tnumber Div_tnumber_number Div_tnumber_tnumber Mult_number_tnumber Mult_tnumber_number Mult_tnumber_tnumber Sub_number_tnumber Sub_tnumber_number Sub_tnumber_tnumber Tfloat_degrees Tfloat_derivative Tfloat_radians tfloat_round Tfloat_round Tnumber_abs

datum_round_float() Datum datum_round_float ( Datum  value, Datum  prec  ) Round a number to a given number of decimal places. Mathematical operators (+, -, *, /) and functions (round, degrees, ...) for temporal numbers.