How can I delete some rows of a matrix

Hi. Suppose I have matrix A e.g.

 A=[8.2505    4.8825    2.2563    0.0020    0   
    8.2505    4.8825    2.2687    0.0020    1
    8.2505    4.8825    2.2813    0.0020    2
    8.2505    4.9325    2.2813    0.0020    0
    8.2505    4.9325    2.2938    0.0020    3
    8.2755    4.7575    2.2437    0.0020    0
    8.2755    4.7575    2.2563    0.0020    0
    8.2755    4.7575    2.2687    0.0020    2
    8.2755    4.8075    2.2188    0.0020    0
    8.2755    4.8075    2.2313    0.0020    3
    8.2755    4.8075    2.2437    0.0020    1
    8.2755    4.8075    2.2563    0.0010    0
    8.2755    4.8075    2.2687    0.0010    2];

I want to delete the rows that their fifth column values are unequal to 0 and at the end I want to have the new matrix A without these rows.

Thanks a lot.

[dpb]

Which leaves a column of zeros???

[mr mo]

At the end I want this :

 A=[8.2505    4.8825    2.2563    0.0020    0   
    8.2505    4.9325    2.2813    0.0020    0
    8.2755    4.7575    2.2437    0.0020    0
    8.2755    4.7575    2.2563    0.0020    0
    8.2755    4.8075    2.2188    0.0020    0
    8.2755    4.8075    2.2563    0.0010    0];

Answer 1

[James Tursa]

A = A(A(:,5)==0,:);

or

A(A(:,5)~=0,:) = [];

[mr mo]

Thanks but this code gives the rows that their fifth column values are unequal to 0 and I don't want this.

At the end I want to have the new matrix A without the rows that their fifth column values are unequal to 0.

[mr mo]

At the end I want this :

 A=[8.2505    4.8825    2.2563    0.0020    0   
    8.2505    4.9325    2.2813    0.0020    0
    8.2755    4.7575    2.2437    0.0020    0
    8.2755    4.7575    2.2563    0.0020    0
    8.2755    4.8075    2.2188    0.0020    0
    8.2755    4.8075    2.2563    0.0010    0];

[James Tursa]

This code gives the desired result you posted above. So I am not certain what the problem is at this point.

[mr mo]

I made a little mistake. you're right. Thanks a lot.