Sqrtm
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Calcula a raiz quadrada da matriz de uma ou mais matrizes quadradas:
matmul(m²(A),m²(A)) = A
A matriz de entrada deve ser invertível. Se a matriz de entrada for real, ela não deve ter autovalores reais e negativos (pares de autovalores conjugados complexos são permitidos).
A raiz quadrada da matriz é calculada primeiro reduzindo a matriz à forma quase triangular com a decomposição real de Schur. A raiz quadrada da matriz quase triangular é então calculada diretamente. Detalhes do algoritmo podem ser encontrados em: Nicholas J. Higham, "Computing real square Roots of a Real Matrix", Linear Algebra Appl., 1987.
A entrada é um tensor de forma `[..., M, M]` cujas 2 dimensões mais internas formam matrizes quadradas. A saída é um tensor da mesma forma que a entrada contendo a raiz quadrada da matriz para todas as submatrizes de entrada `[..., :, :]`.
Constantes
Corda | OP_NAME | O nome desta operação, conforme conhecido pelo mecanismo principal do TensorFlow |
Métodos herdados
Da classe java.lang.Object boleano | é igual (objeto arg0) |
aula final<?> | getClass () |
interno | código hash () |
vazio final | notificar () |
vazio final | notificar todos () |
Corda | para sequenciar () |
vazio final | espere (long arg0, int arg1) |
vazio final | espere (arg0 longo) |
vazio final | espere () |
Da interface org.tensorflow.Operand saída abstrata <T> | asOutput () Retorna o identificador simbólico do tensor. |
abstrato T | |
forma abstrata | forma () Retorna a forma (possivelmente parcialmente conhecida) do tensor referido pela Output deste operando. |
Classe abstrata<T> | tipo () Retorna o tipo de tensor deste operando |
Constantes
String final estática pública OP_NAME
O nome desta operação, conforme conhecido pelo mecanismo principal do TensorFlow
Valor constante: "MatrixSquareRoot"
Métodos Públicos
Saída pública <T> asOutput ()
Retorna o identificador simbólico do tensor.
As entradas para operações do TensorFlow são saídas de outra operação do TensorFlow. Este método é usado para obter um identificador simbólico que representa o cálculo da entrada.
Método de fábrica para criar uma classe que envolve uma nova operação Sqrtm.
Parâmetros
escopo | escopo atual |
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entrada | A forma é `[..., M, M]`. |
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Devoluções
- uma nova instância do Sqrtm
Saída pública <T> saída ()
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Última atualização 2025-07-25 UTC.
[null,null,["Última atualização 2025-07-25 UTC."],[],[],null,["# Sqrtm\n\npublic final class **Sqrtm** \nComputes the matrix square root of one or more square matrices:\n\n\nmatmul(sqrtm(A), sqrtm(A)) = A\n\n\nThe input matrix should be invertible. If the input matrix is real, it should\nhave no eigenvalues which are real and negative (pairs of complex conjugate\neigenvalues are allowed).\n\n\nThe matrix square root is computed by first reducing the matrix to\nquasi-triangular form with the real Schur decomposition. The square root\nof the quasi-triangular matrix is then computed directly. Details of\nthe algorithm can be found in: Nicholas J. Higham, \"Computing real\nsquare roots of a real matrix\", Linear Algebra Appl., 1987.\n\n\nThe input is a tensor of shape \\`\\[..., M, M\\]\\` whose inner-most 2 dimensions\nform square matrices. The output is a tensor of the same shape as the input\ncontaining the matrix square root for all input submatrices \\`\\[..., :, :\\]\\`.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### Constants\n\n|--------|----------------------------------------------------------------------|---------------------------------------------------------|\n| String | [OP_NAME](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm#OP_NAME) | The name of this op, as known by TensorFlow core engine |\n\n### Public Methods\n\n|----------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e | [asOutput](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm#asOutput())() Returns the symbolic handle of the tensor. |\n| static \\\u003cT extends [TType](/jvm/api_docs/java/org/tensorflow/types/family/TType)\\\u003e [Sqrtm](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm)\\\u003cT\\\u003e | [create](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm#create(org.tensorflow.op.Scope, org.tensorflow.Operand\u003cT\u003e))([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e input) Factory method to create a class wrapping a new Sqrtm operation. |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e | [output](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm#output())() Shape is \\`\\[..., M, M\\]\\`. |\n\n### Inherited Methods\n\nFrom class [org.tensorflow.op.RawOp](/jvm/api_docs/java/org/tensorflow/op/RawOp) \n\n|----------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| final boolean | [equals](/jvm/api_docs/java/org/tensorflow/op/RawOp#equals(java.lang.Object))(Object obj) |\n| final int | [hashCode](/jvm/api_docs/java/org/tensorflow/op/RawOp#hashCode())() |\n| [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/RawOp#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n| final String | [toString](/jvm/api_docs/java/org/tensorflow/op/RawOp#toString())() |\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nFrom interface [org.tensorflow.op.Op](/jvm/api_docs/java/org/tensorflow/op/Op) \n\n|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [ExecutionEnvironment](/jvm/api_docs/java/org/tensorflow/ExecutionEnvironment) | [env](/jvm/api_docs/java/org/tensorflow/op/Op#env())() Return the execution environment this op was created in. |\n| abstract [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/Op#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n\nFrom interface [org.tensorflow.Operand](/jvm/api_docs/java/org/tensorflow/Operand) \n\n|-------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e | [asOutput](/jvm/api_docs/java/org/tensorflow/Operand#asOutput())() Returns the symbolic handle of the tensor. |\n| abstract T | [asTensor](/jvm/api_docs/java/org/tensorflow/Operand#asTensor())() Returns the tensor at this operand. |\n| abstract [Shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shape) | [shape](/jvm/api_docs/java/org/tensorflow/Operand#shape())() Returns the (possibly partially known) shape of the tensor referred to by the [Output](/jvm/api_docs/java/org/tensorflow/Output) of this operand. |\n| abstract Class\\\u003cT\\\u003e | [type](/jvm/api_docs/java/org/tensorflow/Operand#type())() Returns the tensor type of this operand |\n\nFrom interface [org.tensorflow.ndarray.Shaped](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped) \n\n|-------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract int | [rank](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#rank())() |\n| abstract [Shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shape) | [shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#shape())() |\n| abstract long | [size](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#size())() Computes and returns the total size of this container, in number of values. |\n\nConstants\n---------\n\n#### public static final String\n**OP_NAME**\n\nThe name of this op, as known by TensorFlow core engine \nConstant Value: \"MatrixSquareRoot\"\n\nPublic Methods\n--------------\n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e\n**asOutput**\n()\n\nReturns the symbolic handle of the tensor.\n\nInputs to TensorFlow operations are outputs of another TensorFlow operation. This method is\nused to obtain a symbolic handle that represents the computation of the input.\n\n\u003cbr /\u003e\n\n#### public static [Sqrtm](/jvm/api_docs/java/org/tensorflow/op/linalg/Sqrtm)\\\u003cT\\\u003e\n**create**\n([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003cT\\\u003e input)\n\nFactory method to create a class wrapping a new Sqrtm operation. \n\n##### Parameters\n\n| scope | current scope |\n| input | Shape is \\`\\[..., M, M\\]\\`. |\n|-------|-----------------------------|\n\n##### Returns\n\n- a new instance of Sqrtm \n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003cT\\\u003e\n**output**\n()\n\nShape is \\`\\[..., M, M\\]\\`.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e"]]