1. What is the purpose of the below function public double array Function (double[] arr) { double...

1. What is the purpose of the below function

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public double array Function (double[] arr) { double num arr[0]; for(int i=0; i < arr.length; i++) if(arr[i] < num) { { num = arr[i]; } } } return num; public double array Function (double[] arr) { double num arr[0]; for(int i=0; i < arr.length; i++) if(arr[i] < num) { { num = arr[i]; } } } return num;