diff --git a/src/NumericalAnalysis/RootFinding/NewtonsMethod.php b/src/NumericalAnalysis/RootFinding/NewtonsMethod.php
index e7052e339..b22e411c8 100644
--- a/src/NumericalAnalysis/RootFinding/NewtonsMethod.php
+++ b/src/NumericalAnalysis/RootFinding/NewtonsMethod.php
@@ -28,8 +28,8 @@ public static function solve(callable $function, array $args, $target, $tol, $po
         Validation::tolerance($tol);
 
         // Initialize
-        $args1    = $args;
-        $guess    = $args[$position];
+        $args1 = $args;
+        $guess = $args[$position];
 
         do {
             $args1[$position] = $guess + $tol; // load the initial guess into the arguments