xcall MIAMEX, MX_ROUND, opcode, factor
MX_ROUND allows you to get (opcode = 0) or set (opcode = 1) the new variable rounding factor. Basically the factor is set to the level of precision you would like. 1 means round all variables to the nearest integer. .01 would be to the nearest one hundredth. 0 disables the feature. Note that the setting persists across programs. For an in-depth discussion of the floating point rounding issue, see Rounding of Floating Point Variables.
History
2004 April, A-Shell 4.9.878: Routine added to A-Shell