diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs b/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
index 429b04979..17b4a85a4 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
@@ -80,14 +80,14 @@ namespace Flow.Launcher.Plugin.Calculator
                 if (result == null || string.IsNullOrEmpty(result.ToString()))
                 {
                     if (!_settings.ShowErrorMessage) return EmptyResults;
-                    return new List<Result>
-                    {
+                    return
+                    [
                         new Result
                         {
                             Title = Localize.flowlauncher_plugin_calculator_expression_not_complete(),
                             IcoPath = IcoPath
                         }
-                    };
+                    ];
                 }
 
                 if (result.ToString() == "NaN")
@@ -105,8 +105,8 @@ namespace Flow.Launcher.Plugin.Calculator
                     decimal roundedResult = Math.Round(Convert.ToDecimal(result), _settings.MaxDecimalPlaces, MidpointRounding.AwayFromZero);
                     string newResult = FormatResult(roundedResult);
 
-                    return new List<Result>
-                    {
+                    return
+                    [
                         new Result
                         {
                             Title = newResult,
@@ -128,21 +128,21 @@ namespace Flow.Launcher.Plugin.Calculator
                                 }
                             }
                         }
-                    };
+                    ];
                 }
             }
             catch (Exception)
             {
                 // Mages engine can throw various exceptions, for simplicity we catch them all and show a generic message.
                 if (!_settings.ShowErrorMessage) return EmptyResults;
-                return new List<Result>
-                {
+                return
+                [
                     new Result
                     {
                         Title = Localize.flowlauncher_plugin_calculator_expression_not_complete(),
                         IcoPath = IcoPath
                     }
-                };
+                ];
             }
 
             return EmptyResults;
@@ -153,7 +153,7 @@ namespace Flow.Launcher.Plugin.Calculator
             // m.Groups[1].Value will be `(...)` with parens
             var contentWithParen = m.Groups[1].Value;
             // remove outer parens. `(min(2,3), 4)` becomes `min(2,3), 4`
-            var argsContent = contentWithParen.Substring(1, contentWithParen.Length - 2);
+            var argsContent = contentWithParen[1..^1];
 
             var bracketCount = 0;
             var splitIndex = -1;
diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/Settings.cs b/Plugins/Flow.Launcher.Plugin.Calculator/Settings.cs
index 0f32b09a9..cac0f3080 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/Settings.cs
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/Settings.cs
@@ -1,12 +1,11 @@
 
-namespace Flow.Launcher.Plugin.Calculator
+namespace Flow.Launcher.Plugin.Calculator;
+
+public class Settings
 {
-    public class Settings
-    {
-        public DecimalSeparator DecimalSeparator { get; set; } = DecimalSeparator.UseSystemLocale;
+    public DecimalSeparator DecimalSeparator { get; set; } = DecimalSeparator.UseSystemLocale;
 
-        public int MaxDecimalPlaces { get; set; } = 10;
+    public int MaxDecimalPlaces { get; set; } = 10;
 
-        public bool ShowErrorMessage { get; set; } = false;
-    }
+    public bool ShowErrorMessage { get; set; } = false;
 }
diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/ViewModels/SettingsViewModel.cs b/Plugins/Flow.Launcher.Plugin.Calculator/ViewModels/SettingsViewModel.cs
index 87ae72fb6..36c277f15 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/ViewModels/SettingsViewModel.cs
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/ViewModels/SettingsViewModel.cs
@@ -1,31 +1,25 @@
 using System.Collections.Generic;
 using System.Linq;
 
-namespace Flow.Launcher.Plugin.Calculator.ViewModels
+namespace Flow.Launcher.Plugin.Calculator.ViewModels;
+
+public class SettingsViewModel(Settings settings) : BaseModel
 {
-    public class SettingsViewModel : BaseModel
+    public Settings Settings { get; init; } = settings;
+
+    public static IEnumerable<int> MaxDecimalPlacesRange => Enumerable.Range(1, 20);
+
+    public List<DecimalSeparatorLocalized> AllDecimalSeparator { get; } = DecimalSeparatorLocalized.GetValues();
+
+    public DecimalSeparator SelectedDecimalSeparator
     {
-        public SettingsViewModel(Settings settings)
+        get => Settings.DecimalSeparator;
+        set
         {
-            Settings = settings;
-        }
-
-        public Settings Settings { get; init; }
-
-        public static IEnumerable<int> MaxDecimalPlacesRange => Enumerable.Range(1, 20);
-
-        public List<DecimalSeparatorLocalized> AllDecimalSeparator { get; } = DecimalSeparatorLocalized.GetValues();
-
-        public DecimalSeparator SelectedDecimalSeparator
-        {
-            get => Settings.DecimalSeparator;
-            set
+            if (Settings.DecimalSeparator != value)
             {
-                if (Settings.DecimalSeparator != value)
-                {
-                    Settings.DecimalSeparator = value;
-                    OnPropertyChanged();
-                }
+                Settings.DecimalSeparator = value;
+                OnPropertyChanged();
             }
         }
     }
diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/Views/CalculatorSettings.xaml.cs b/Plugins/Flow.Launcher.Plugin.Calculator/Views/CalculatorSettings.xaml.cs
index 7bc307d11..9e75e7bfb 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/Views/CalculatorSettings.xaml.cs
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/Views/CalculatorSettings.xaml.cs
@@ -1,22 +1,16 @@
 using System.Windows.Controls;
 using Flow.Launcher.Plugin.Calculator.ViewModels;
 
-namespace Flow.Launcher.Plugin.Calculator.Views
-{
-    /// <summary>
-    /// Interaction logic for CalculatorSettings.xaml
-    /// </summary>
-    public partial class CalculatorSettings : UserControl
-    {
-        private readonly SettingsViewModel _viewModel;
-        private readonly Settings _settings;
+namespace Flow.Launcher.Plugin.Calculator.Views;
 
-        public CalculatorSettings(Settings settings)
-        {
-            _viewModel = new SettingsViewModel(settings);
-            _settings = _viewModel.Settings;
-            DataContext = _viewModel;
-            InitializeComponent();
-        }
+public partial class CalculatorSettings : UserControl
+{
+    private readonly SettingsViewModel _viewModel;
+
+    public CalculatorSettings(Settings settings)
+    {
+        _viewModel = new SettingsViewModel(settings);
+        DataContext = _viewModel;
+        InitializeComponent();
     }
 }