Gaussian_elemination - change to remove warning (TheAlgorithms#10221)

* Replacing the generator with numpy vector operations from lu_decomposition.

* Revert "Replacing the generator with numpy vector operations from lu_decomposition."

This reverts commit ad217c6.

* Removes the warning: Conversion of an array with ndim > 0 to a scalar is deprecated, and will error in future. Ensure you extract a single element from your array before performing this operation

Author: quant12345

Diff for: arithmetic_analysis/gaussian_elimination.py

@@ -34,7 +34,7 @@ def retroactive_resolution(
     x: NDArray[float64] = np.zeros((rows, 1), dtype=float)
     for row in reversed(range(rows)):
         total = np.dot(coefficients[row, row + 1 :], x[row + 1 :])
-        x[row, 0] = (vector[row] - total) / coefficients[row, row]
+        x[row, 0] = (vector[row][0] - total[0]) / coefficients[row, row]
 
     return x