Is This a Valid Matrix Declaration?

[zb0S216C]

As the title says, is this (image): http://postimage.org/image/uzhxxtu8b/ a valid matrix declaration?

_Wazzak

[andywestken]

Looks ok to me. Like the penultimate step in some reduction, which will end up with a 1 dimensional matrix containing three 10s

[zb0S216C]

Thanks for the reply, Andy. The matrix was an example but my query was the use of parentheses.

Thanks again.

_Wazzak

[tition]

Mathematical scientific papers use large parentheses () rather than large square brackets [] for matrices. The small parentheses in the matrix are allowed, but not needed (better remove them).