# isCentrosymmetricMatrix > Test if a value is a [centrosymmetric matrix][centrosymmetric-matrix].
## Usage ```javascript var isCentrosymmetricMatrix = require( '@stdlib/assert/is-centrosymmetric-matrix' ); ``` #### isCentrosymmetricMatrix( value ) Tests if a value is a [centrosymmetric matrix][centrosymmetric-matrix]. ```javascript var ndarray = require( '@stdlib/ndarray/ctor' ); var buffer = [ 1, 2, 3, 4, 5, 4, 3, 2, 1 ]; var arr = ndarray( 'generic', buffer, [ 3, 3 ], [ 3, 1 ], 0, 'row-major' ); var bool = isCentrosymmetricMatrix( arr ); // returns true ```
## Examples ```javascript var ndarray = require( '@stdlib/ndarray/ctor' ); var isCentrosymmetricMatrix = require( '@stdlib/assert/is-centrosymmetric-matrix' ); var arr = ndarray( 'generic', [ 2, 1, 1, 2 ], [ 2, 2 ], [ 2, 1 ], 0, 'row-major' ); var out = isCentrosymmetricMatrix( arr ); // returns true out = isCentrosymmetricMatrix( [ 1, 2, 3, 4 ] ); // returns false out = isCentrosymmetricMatrix( {} ); // returns false out = isCentrosymmetricMatrix( null ); // returns false ```