Condition of a matrix giving an error of first input must be single or double

Question

Abdullah Nasir 2018-2-22

评论： Abdullah Nasir 2018-2-22

The matrix is as follows

1 -0.686522129973753 -0.551898879454274

1 -0.671205995069856 -0.519496574171434

1 -0.655431538907586 -0.486521559400613

The matrix is like this with 51 by 3 matrix and when I try to find condition number number I get the below error

[Error using svd

First input must be single or double.

Error in cond

s = svd(A);

Error in Script (line 24)

s = cond(s1,2)

Thank you

Answer 1

the cyclist 2018-2-22

Are you sure your input matrix is numeric (and not, for example, a cell array)? What do you get from

class(M)

where M is the matrix you are entering into cond? It needs to be a single or double, otherwise you will need to do some kind of type conversion.

Abdullah Nasir 2018-2-22

it is a cell and how I can make it work