Misc #10446 ยป super_little_fix_for_NEWS.patch
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horizontally and vertically.
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* Matrix#laplace_expansion(row_or_column: num) returns the laplace_expansion
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along the +num+ -th row or column.
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* Vector.basis(size:, index:) returns the specified basis vector
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* Unary - and + added for Vector and Matrix
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* Vector#cross_product generalized to arbitrary dimensions
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* Vector#dot and #cross are aliases for #inner_product and #cross_product
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* Vector.basis(size:, index:) returns the specified basis vector.
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* Unary - and + added for Vector and Matrix.
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* Vector#cross_product generalized to arbitrary dimensions.
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* Vector#dot and #cross are aliases for #inner_product and #cross_product.
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* Extended methods:
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* Matrix#[] returns new vector if either arguments is range,
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and returns new matrix, if both arguments are range.
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