App preferences: display precision => displayed decimals

src/app/config.json

 {
     "params": {
-        "displayPrecision": 0.001,
+        "displayPrecision": 3,
         "computePrecision": 0.0001,
         "newtonMaxIterations": 50,
         "enableNotifications": true,

src/app/services/app-setup/app-setup.service.ts

@@ -16,7 +16,7 @@ export class ApplicationSetupService extends Observable {
     private _fallbackLanguage = "fr";
 
     // default builtin values
-    public displayPrecision = 0.001;
+    public displayPrecision = 3;
     public computePrecision = 0.0001;
     public newtonMaxIterations = 50;
     public enableNotifications = true;
@@ -71,7 +71,7 @@ export class ApplicationSetupService extends Observable {
     }
 
     public get displayDigits() {
-        return -Math.log10(this.displayPrecision);
+        return this.displayPrecision;
     }
 
     public get fallbackLanguage() {

src/locale/messages.en.json

@@ -378,7 +378,7 @@
     "INFO_SETUP_ENABLE_NOTIFICATIONS": "Enable on-screen notifications",
     "INFO_SETUP_LANGUAGE": "Language",
     "INFO_SETUP_NEWTON_MAX_ITER": "Newton iteration limit",
-    "INFO_SETUP_PRECISION_AFFICHAGE": "Display accuracy",
+    "INFO_SETUP_PRECISION_AFFICHAGE": "Number of displayed decimals",
     "INFO_SETUP_PRECISION_CALCUL": "Computation accuracy",
     "INFO_SETUP_RESTORE_DEFAULT_VALUES": "Restore default values",
     "INFO_SETUP_STORE_PREFERENCES": "Save preferences",

src/locale/messages.fr.json

@@ -377,7 +377,7 @@
     "INFO_SETUP_ENABLE_NOTIFICATIONS": "Activer les notifications à l'écran",
     "INFO_SETUP_LANGUAGE": "Langue",
     "INFO_SETUP_NEWTON_MAX_ITER": "Newton : nombre d'itérations maximum",
-    "INFO_SETUP_PRECISION_AFFICHAGE": "Précision d'affichage",
+    "INFO_SETUP_PRECISION_AFFICHAGE": "Nombre de décimales affichées",
     "INFO_SETUP_PRECISION_CALCUL": "Précision de calcul",
     "INFO_SETUP_RESTORE_DEFAULT_VALUES": "Restaurer les valeurs par défaut",
     "INFO_SETUP_STORE_PREFERENCES": "Enregistrer les préférences",