Strang-1.7-1.15-U

• Book	Linear Algebra
  Author	Gilbert Strang
  Edition

code_begins

print " let us take a 2X2, 3X3 and 4X4 matices in given format"
A = matrix([[2,-1],[-1,2]])
print A
C = matrix([[3,-1,-1],[-1,3,-1],[-1,-1,3]])
print C
D = matrix([[4,-1,-1,-1],[-1,4,-1,-1],[-1,-1,4,-1],[-1,-1,-1,4]])
print D
print "========================="
print " now lets find out inverse of these matrices"
print A.inverse()
print ""
print C.inverse()
print ""
print D.inverse()
print "========================="
print "now lets calculate A^-1 * (n+1) and equate it to given matrix to find value of c "
B = A.inverse()*(3)
print B
print "========================="
B = C.inverse()*4
print B
print "========================="
B = D.inverse()*5
print B
print "========================="
print ""
print "hence we conclude from the above matrices that the value of c is constant i.e = 2"

code_ends

• Solution by:

  • Ch.Sandeep, student, GITAM University
  • V.Vishnu Sarma, student, GITAM University