diff --git a/Source/Charts/Charts/BarLineChartViewBase.swift b/Source/Charts/Charts/BarLineChartViewBase.swift
index 052affae2c..f3c90279c9 100644
--- a/Source/Charts/Charts/BarLineChartViewBase.swift
+++ b/Source/Charts/Charts/BarLineChartViewBase.swift
@@ -877,8 +877,8 @@ open class BarLineChartViewBase: ChartViewBase, BarLineScatterCandleBubbleChartD
             let velocity = _panGestureRecognizer.velocity(in: self)
             if _data === nil || !isDragEnabled ||
                 (self.hasNoDragOffset && self.isFullyZoomedOut && !self.isHighlightPerDragEnabled) ||
-                (!_dragYEnabled && fabs(velocity.y) > fabs(velocity.x)) ||
-                (!_dragXEnabled && fabs(velocity.y) < fabs(velocity.x))
+                (!_dragYEnabled && abs(velocity.y) > abs(velocity.x)) ||
+                (!_dragXEnabled && abs(velocity.y) < abs(velocity.x))
             {
                 return false
             }
diff --git a/Source/Charts/Filters/DataApproximator+N.swift b/Source/Charts/Filters/DataApproximator+N.swift
index 32a7784664..36bbeec424 100644
--- a/Source/Charts/Filters/DataApproximator+N.swift
+++ b/Source/Charts/Filters/DataApproximator+N.swift
@@ -15,7 +15,7 @@ extension CGPoint {
         let dx = linePoint2.x - linePoint1.x
         let dy = linePoint2.y - linePoint1.y
         
-        let dividend = fabs(dy * self.x - dx * self.y - linePoint1.x * linePoint2.y + linePoint2.x * linePoint1.y)
+        let dividend = abs(dy * self.x - dx * self.y - linePoint1.x * linePoint2.y + linePoint2.x * linePoint1.y)
         let divisor = sqrt(dx * dx + dy * dy)
         
         return dividend / divisor
diff --git a/Source/Charts/Renderers/ChartDataRendererBase.swift b/Source/Charts/Renderers/ChartDataRendererBase.swift
index 024516aa15..1a95b7b3b6 100644
--- a/Source/Charts/Renderers/ChartDataRendererBase.swift
+++ b/Source/Charts/Renderers/ChartDataRendererBase.swift
@@ -15,7 +15,7 @@ import CoreGraphics
 @objc(ChartDataRendererBase)
 open class DataRenderer: Renderer
 {
-    @objc open let animator: Animator
+    @objc public let animator: Animator
     
     @objc public init(animator: Animator, viewPortHandler: ViewPortHandler)
     {
diff --git a/Source/Charts/Renderers/Renderer.swift b/Source/Charts/Renderers/Renderer.swift
index 5c929f28e0..e57a9b853f 100644
--- a/Source/Charts/Renderers/Renderer.swift
+++ b/Source/Charts/Renderers/Renderer.swift
@@ -16,7 +16,7 @@ import CoreGraphics
 open class Renderer: NSObject
 {
     /// the component that handles the drawing area of the chart and it's offsets
-    @objc open let viewPortHandler: ViewPortHandler
+    @objc public let viewPortHandler: ViewPortHandler
 
     @objc public init(viewPortHandler: ViewPortHandler)
     {