error in indexing mode

hi, i wanna size of a matrix but below error happens:

Indexing cannot yield multiple results.

Error in Untitle222d2 (line 2)

[N,M]=size(V)

OR

V =

1.0350 0.9710 0.9680

Subscript indices must either be real positive integers or logicals.

Error in Untitle222d2 (line 2)

N=size(V)

what does this means.

Answer 1

[Walter Roberson]

You accidentally created a variable named "size"

Answer 2

[C B]

V= [ 1.0350    0.9710    0.9680]

V = 1×3

1.0350 0.9710 0.9680

[numRows,numCols] = size(V)

numRows = 1

numCols = 3

N=size(V)

N = 1×2

1 3

Working fine. You have some other query can you elaborate more please.