# file: lecture_08/inverse.py
#                                                                              
# revision history:                                                            
#
# 20230915 (JP): initial version
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# This program transforms data.
#
# To run this script, do this:
#
#  python inverse.py data.txt
#
#------------------------------------------------------------------------------

# import required system modules                                               
#
import os
import sys
import numpy as np

#------------------------------------------------------------------------------
#
# main program
#
#------------------------------------------------------------------------------
 
# load the input data
#
data = np.loadtxt(sys.argv[1], dtype='f', delimiter=',')
print("Input:\n", data)

# compute the determinant
#
print("Determinant: ", np.linalg.det(data))

# compute the inverse
#
print("Inverse:\n", np.linalg.inv(data))

#
# end of file