Question

How to calculate the determinant of a 2X2 matrix in Scala

Answer 1

object DeterminantCalculator extends App {
  val arr = Array(Array(3, 8), Array(4, 6))

  /*
   *       a b
   * arr = 
   *       c d
   * 
   * determinant = a*d - b*c
   * 
   */

  val determinant = (arr(0)(0) * arr(1)(1)) - (arr(0)(1) * arr(1)(0))

  println(determinant)
}

 
  
/*
run:
      
-14
      
*/

 

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