Class SVEC
- java.lang.Object
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- dev.nm.algebra.linear.vector.doubles.dense.DenseVector
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- dev.nm.algebra.linear.matrix.doubles.operation.SVEC
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- All Implemented Interfaces:
Vector
,AbelianGroup<Vector>
,BanachSpace<Vector,Real>
,HilbertSpace<Vector,Real>
,VectorSpace<Vector,Real>
,DeepCopyable
public class SVEC extends DenseVector
SVEC
converts a symmetric matrix K = {Kij} into a vector of dimension n(n+1)/2. That is, \[ \rm{svec}(K) = [k_{1,1}, \sqrt2k_{1,2}, ..., \sqrt2k_{1,n}, k_{2,2}, \sqrt2k_{2,3}, ..., \sqrt2k_{2,n}, ... k_{n,n},] \]SVEC
is the inverse operator ofMAT
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Method Summary
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Methods inherited from class dev.nm.algebra.linear.vector.doubles.dense.DenseVector
add, add, add, angle, deepCopy, divide, divide, equals, get, hashCode, innerProduct, innerProduct, minus, minus, minus, multiply, multiply, norm, norm, opposite, pow, scaled, scaled, set, set, size, toArray, toString, ZERO
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Constructor Detail
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SVEC
public SVEC(Matrix A)
Construct the SVEC of a matrix.- Parameters:
A
- a matrix
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