Output format for best function value found.

mc_work/dorun.go

@@ -230,7 +230,7 @@ func singleRun(mcPrm *McPrm) (MCresult, error) {
 	fOld := ackley.Ackley(x) // Initial function value
 	fTrial := fOld
 	tmprtr := float64(mcPrm.IniTmp)
-	xDlta := mcPrm.XDlta // Step size which might be adjusted on the fly
+	xDlta := mcPrm.XDlta
 	saveStep(&cprm, 0, tmprtr, x, fOld)
 
 	for n := 0; n < mcPrm.NStep; n++ {

ui/output_tab.go

@@ -31,7 +31,7 @@ func runStatTxt(rslt *mcwork.MCresult) fyne.Widget {
 	s := fmt.Sprintf("Num steps %d\nNum accepted %d\nacceptance rate %.1f %%",
 		rslt.NStep, rslt.NAcc, (float32(rslt.NAcc)/float32(rslt.NStep))*100.)
 	if rslt.BestX != nil {
-		s += fmt.Sprintf("\nbest function value: %.2f\nat %.1g",
+		s += fmt.Sprintf("\nbest function value: %.2g\nat %.1g",
 			rslt.Bestfval, rslt.BestX)
 	}
 	r := widget.NewLabel(s)