Book
Linear Algebra
Author
Gilbert Strang
Edition
a = var('a')
b= var('b')
c=var('c')
d=var('d')
A = matrix([[a, b],[c, d]])
print A
print "-----------------"
print "let "
B = matrix([[1,1],[1,1]])
print B,
print " be B"
C = A*B
D = B*A
print "------------------"
print D
print " = BA"
print C
print " = AB"
print " for AB=BA, a=d and b=c should be true."
Solution by:
- Ch.Sandeep, student, GITAM University
- V.VIshnu Sarma, student, GITAM University