using uCalcSoftware;

var uc = new uCalc();
var x = uc.DefineVariable("x = 0");
var expr = uc.Parse("x * 12.5");

for (int i = 1; i <= 3; i++) {
   x.Value(i);
   // Align numeric output within a 6-character field
   Console.WriteLine(expr.EvaluateStr("Result = $'Item {x}: ' + Format('--{:6.2f}--', double(Result))"));
}