Hi,

we have a RFE : C-like printf function for OPL Script

https://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=84471

But in the meantime let me a workaround given by @trebron270002SMPG​

https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777-0000-0000-0000-000014439808&ps=25

execute
{

function toGivenPrecision(v, prec) {
var m = Opl.pow(10,prec);
var s = "" + Opl.round(m * v) / m;
var idx = s.indexOf(".");
if(idx >= 0 && idx+prec < s.length)
{
s = s.substring(0,idx+prec+1);
}
return (s);
}

var f=1.23456;
writeln(toGivenPrecision(f,4));
writeln(toGivenPrecision(f,3));
writeln(toGivenPrecision(f,2));
writeln(toGivenPrecision(f,1));

}

which gives

1.2346
1.235
1.23
1.2

regards