Book
Linear Algebra
Author
Gilbert Strang
Edition
a=matrix([[1,0,0],[5,1,0],[2,3,1]]) print 'matrix A:',a print 'Inverse(A):'a.inverse() print 'A triangular matrix is invertible if and only if no diagonal entries are zero.'
Solution by:
S.K.Manoj, Student, IIIT Hyderabad