Differences between revisions 1 and 2
Revision 1 as of 2010-12-17 09:17:24
Size: 556
Editor: vsowjanya
Comment:
Revision 2 as of 2010-12-17 12:10:39
Size: 412
Editor: 172
Comment:
Deletions are marked like this. Additions are marked like this.
Line 8: Line 8:
B=array([[0,0,1],[0,0,1],[1,1,1]])
det=B[1][1]*B[2][2]-B[2][1]*B[1][2]
det
det==0# det of 2x2 submatrix is non zero. thus rank is 2
# null space is empty set
a=matrix([[0,0,1],[0,0,1],[1,1,1]])
b=matrix([[0,0,1,2],[0,0,1,2],[1,1,1,0]])
a.rank()
b.rank()
a.nullity()
b.nullity()
Line 14: Line 15:
c=array([[0,0,1,2],[0,0,1,2],[1,1,1,0]])
c[0]=c[1]-c[0]
c
len(c.nonzero()) #rank is number of non zero rows
Line 23: Line 21:
   * vsowjanya,faculty, cvr college of engineering
   * gharitha,student,prakasam engineering college
   * g.mamatha,student,prakasam engg college

   * VVL Amruthavalli,student,prakasam engineering college
  • Book

    Linear Algebra

    Author

    Gilbert Strang

    Edition

a=matrix([[0,0,1],[0,0,1],[1,1,1]])
b=matrix([[0,0,1,2],[0,0,1,2],[1,1,1,0]])
a.rank()
b.rank()
a.nullity()
b.nullity()

  • Solution by:

    • g.mamatha,student,prakasam engg college
    • VVL Amruthavalli,student,prakasam engineering college

Strang-2.4-U (last edited 2010-12-17 12:10:39 by 172)