98 lines
2.1 KiB
Markdown
98 lines
2.1 KiB
Markdown
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@license Apache-2.0
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Copyright (c) 2018 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# isSkewCentrosymmetricMatrix
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> Test if a value is a [skew-centrosymmetric matrix][centrosymmetric-matrix].
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<section class="usage">
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## Usage
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<!-- eslint-disable id-length -->
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```javascript
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var isSkewCentrosymmetricMatrix = require( '@stdlib/assert/is-skew-centrosymmetric-matrix' );
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```
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#### isSkewCentrosymmetricMatrix( value )
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Tests if a value is a [skew-centrosymmetric matrix][centrosymmetric-matrix].
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<!-- eslint-disable id-length -->
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<!-- eslint-disable array-element-newline -->
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```javascript
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var ndarray = require( '@stdlib/ndarray/ctor' );
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var buffer = [
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1, 2, 3,
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4, 0, -4,
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-3, -2, -1
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];
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var arr = ndarray( 'generic', buffer, [ 3, 3 ], [ 3, 1 ], 0, 'row-major' );
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var bool = isSkewCentrosymmetricMatrix( arr );
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// returns true
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```
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</section>
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<!-- /.usage -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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<!-- eslint-disable id-length -->
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```javascript
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var ndarray = require( '@stdlib/ndarray/ctor' );
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var isSkewCentrosymmetricMatrix = require( '@stdlib/assert/is-skew-centrosymmetric-matrix' );
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var arr = ndarray( 'generic', [ 2, 1, -1, -2 ], [ 2, 2 ], [ 2, 1 ], 0, 'row-major' );
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var out = isSkewCentrosymmetricMatrix( arr );
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// returns true
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out = isSkewCentrosymmetricMatrix( [ 1, 2, 3, 4 ] );
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// returns false
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out = isSkewCentrosymmetricMatrix( {} );
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// returns false
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out = isSkewCentrosymmetricMatrix( null );
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// returns false
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```
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</section>
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<!-- /.examples -->
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<section class="links">
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[centrosymmetric-matrix]: https://en.wikipedia.org/wiki/Centrosymmetric_matrix
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</section>
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<!-- /.links -->
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