# Uses of Class
java.lang.Double

Packages that use Double
Package
Description
java.lang
Provides classes that are fundamental to the design of the Java programming language.
java.util
Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
java.util.stream
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
javax.management.openmbean
Provides the open data types and Open MBean descriptor classes.
jdk.incubator.vector
Incubating Feature. Will be removed in a future release.

- ## Uses of Double in java.lang

  Fields in java.lang with type parameters of type Double
  Modifier and Type
  Field
  Description
  `static final Class<Double>`
  Double.`TYPE`
  The `Class` instance representing the primitive type `double`.
  Methods in java.lang that return Double
  Modifier and Type
  Method
  Description
  `Double`
  Double.`resolveConstantDesc(MethodHandles.Lookup lookup)`
  Resolves this instance as a `ConstantDesc`, the result of which is the instance itself.
  `static Double`
  Double.`valueOf(double d)`
  Returns a `Double` instance representing the specified `double` value.
  `static Double`
  Double.`valueOf(String s)`
  Returns a `Double` object holding the `double` value represented by the argument string `s`.
  Methods in java.lang that return types with arguments of type Double
  Modifier and Type
  Method
  Description
  `Optional<Double>`
  Double.`describeConstable()`
  Returns an `Optional` containing the nominal descriptor for this instance, which is the instance itself.
  Methods in java.lang with parameters of type Double
  Modifier and Type
  Method
  Description
  `int`
  Double.`compareTo(Double anotherDouble)`
  Compares two `Double` objects numerically.

- ## Uses of Double in java.util

  Methods in java.util that return Double
  Modifier and Type
  Method
  Description
  `default Double`
  PrimitiveIterator.OfDouble.`next()`
  Returns the next element in the iteration.
  Method parameters in java.util with type arguments of type Double
  Modifier and Type
  Method
  Description
  `default void`
  PrimitiveIterator.OfDouble.`forEachRemaining(Consumer<? super Double> action)`
  Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
  `default void`
  Spliterator.OfDouble.`forEachRemaining(Consumer<? super Double> action)`
  Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
  `default boolean`
  Spliterator.OfDouble.`tryAdvance(Consumer<? super Double> action)`
  If a remaining element exists, performs the given action on it, returning `true`; else returns `false`.

- ## Uses of Double in java.util.stream

  Methods in java.util.stream that return types with arguments of type Double
  Modifier and Type
  Method
  Description
  `static <T> Collector<T,?,Double>`
  Collectors.`averagingDouble(ToDoubleFunction<? super T> mapper)`
  Returns a `Collector` that produces the arithmetic mean of a double-valued function applied to the input elements.
  `static <T> Collector<T,?,Double>`
  Collectors.`averagingInt(ToIntFunction<? super T> mapper)`
  Returns a `Collector` that produces the arithmetic mean of an integer-valued function applied to the input elements.
  `static <T> Collector<T,?,Double>`
  Collectors.`averagingLong(ToLongFunction<? super T> mapper)`
  Returns a `Collector` that produces the arithmetic mean of a long-valued function applied to the input elements.
  `Stream<Double>`
  DoubleStream.`boxed()`
  Returns a `Stream` consisting of the elements of this stream, boxed to `Double`.
  `static <T> Collector<T,?,Double>`
  Collectors.`summingDouble(ToDoubleFunction<? super T> mapper)`
  Returns a `Collector` that produces the sum of a double-valued function applied to the input elements.

- ## Uses of Double in javax.management.openmbean

  Fields in javax.management.openmbean with type parameters of type Double
  Modifier and Type
  Field
  Description
  `static final SimpleType<Double>`
  SimpleType.`DOUBLE`
  The `SimpleType` instance describing values whose Java class name is `java.lang.Double`.

- ## Uses of Double in jdk.incubator.vector

  Fields in jdk.incubator.vector with type parameters of type Double
  Modifier and Type
  Field
  Description
  `static final VectorOperators.Conversion<Byte,Double>`
  VectorOperators.`B2D`
  Convert `byteVal` to `(double)byteVal`.
  `static final VectorOperators.Conversion<Double,Byte>`
  VectorOperators.`D2B`
  Convert `doubleVal` to `(byte)doubleVal`.
  `static final VectorOperators.Conversion<Double,Float>`
  VectorOperators.`D2F`
  Convert `doubleVal` to `(float)doubleVal`.
  `static final VectorOperators.Conversion<Double,Integer>`
  VectorOperators.`D2I`
  Convert `doubleVal` to `(int)doubleVal`.
  `static final VectorOperators.Conversion<Double,Long>`
  VectorOperators.`D2L`
  Convert `doubleVal` to `(long)doubleVal`.
  `static final VectorOperators.Conversion<Double,Short>`
  VectorOperators.`D2S`
  Convert `doubleVal` to `(short)doubleVal`.
  `static final VectorOperators.Conversion<Float,Double>`
  VectorOperators.`F2D`
  Convert `floatVal` to `(double)floatVal`.
  `static final VectorOperators.Conversion<Integer,Double>`
  VectorOperators.`I2D`
  Convert `intVal` to `(double)intVal`.
  `static final VectorOperators.Conversion<Long,Double>`
  VectorOperators.`L2D`
  Convert `longVal` to `(double)longVal`.
  `static final VectorOperators.Conversion<Double,Long>`
  VectorOperators.`REINTERPRET_D2L`
  Reinterpret bits of `doubleVal` as `long`.
  `static final VectorOperators.Conversion<Long,Double>`
  VectorOperators.`REINTERPRET_L2D`
  Reinterpret bits of `longVal` as `double`.
  `static final VectorOperators.Conversion<Short,Double>`
  VectorOperators.`S2D`
  Convert `shortVal` to `(double)shortVal`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_128`
  Species representing `DoubleVector`s of `VectorShape.S_128_BIT`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_256`
  Species representing `DoubleVector`s of `VectorShape.S_256_BIT`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_512`
  Species representing `DoubleVector`s of `VectorShape.S_512_BIT`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_64`
  Species representing `DoubleVector`s of `VectorShape.S_64_BIT`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_MAX`
  Species representing `DoubleVector`s of `VectorShape.S_Max_BIT`.
  `static final VectorSpecies<Double>`
  DoubleVector.`SPECIES_PREFERRED`
  Preferred species for `DoubleVector`s.
  Methods in jdk.incubator.vector that return types with arguments of type Double
  Modifier and Type
  Method
  Description
  `abstract VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, double e)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation.
  `final VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, double e, VectorMask<Double> m)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation, in lanes selected by a mask.
  `abstract VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, long e)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation.
  `final VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, long e, VectorMask<Double> m)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation, in lanes selected by a mask.
  `abstract VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, Vector<Double> v)`
  Tests this vector by comparing it with another input vector, according to the given comparison operation.
  `final VectorMask<Double>`
  DoubleVector.`eq(double e)`
  Tests if this vector is equal to an input scalar.
  `final VectorMask<Double>`
  DoubleVector.`eq(Vector<Double> v)`
  Tests if this vector is equal to another input vector.
  `final VectorMask<Double>`
  DoubleVector.`lt(double e)`
  Tests if this vector is less than an input scalar.
  `final VectorMask<Double>`
  DoubleVector.`lt(Vector<Double> v)`
  Tests if this vector is less than another input vector.
  `abstract VectorMask<Double>`
  DoubleVector.`test(VectorOperators.Test op)`
  Tests the lanes of this vector according to the given operation.
  `abstract VectorMask<Double>`
  DoubleVector.`test(VectorOperators.Test op, VectorMask<Double> m)`
  Test selected lanes of this vector, according to the given operation.
  Method parameters in jdk.incubator.vector with type arguments of type Double
  Modifier and Type
  Method
  Description
  `final DoubleVector`
  DoubleVector.`add(double e, VectorMask<Double> m)`
  Adds this vector to the broadcast of an input scalar, selecting lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`add(Vector<Double> v)`
  Adds this vector to a second input vector.
  `final DoubleVector`
  DoubleVector.`add(Vector<Double> v, VectorMask<Double> m)`
  Adds this vector to a second input vector, selecting lanes under the control of a mask.
  `final DoubleVector`
  DoubleVector.`add(Vector<Double> v, VectorMask<Double> m)`
  Adds this vector to a second input vector, selecting lanes under the control of a mask.
  `final DoubleVector`
  DoubleVector.`blend(double e, VectorMask<Double> m)`
  Replaces selected lanes of this vector with a scalar value under the control of a mask.
  `final DoubleVector`
  DoubleVector.`blend(long e, VectorMask<Double> m)`
  Replaces selected lanes of this vector with a scalar value under the control of a mask.
  `abstract DoubleVector`
  DoubleVector.`blend(Vector<Double> v, VectorMask<Double> m)`
  Replaces selected lanes of this vector with corresponding lanes from a second input vector under the control of a mask.
  `abstract DoubleVector`
  DoubleVector.`blend(Vector<Double> v, VectorMask<Double> m)`
  Replaces selected lanes of this vector with corresponding lanes from a second input vector under the control of a mask.
  `static DoubleVector`
  DoubleVector.`broadcast(VectorSpecies<Double> species, double e)`
  Returns a vector of the given species where all lane elements are set to the primitive value `e`.
  `static DoubleVector`
  DoubleVector.`broadcast(VectorSpecies<Double> species, long e)`
  Returns a vector of the given species where all lane elements are set to the primitive value `e`.
  `final VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, double e, VectorMask<Double> m)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation, in lanes selected by a mask.
  `final VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, long e, VectorMask<Double> m)`
  Tests this vector by comparing it with an input scalar, according to the given comparison operation, in lanes selected by a mask.
  `abstract VectorMask<Double>`
  DoubleVector.`compare(VectorOperators.Comparison op, Vector<Double> v)`
  Tests this vector by comparing it with another input vector, according to the given comparison operation.
  `abstract DoubleVector`
  DoubleVector.`compress(VectorMask<Double> m)`
  Compresses the lane elements of this vector selecting lanes under the control of a specific mask.
  `final DoubleVector`
  DoubleVector.`div(double e, VectorMask<Double> m)`
  Divides this vector by the broadcast of an input scalar, selecting lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`div(Vector<Double> v)`
  Divides this vector by a second input vector.
  `final DoubleVector`
  DoubleVector.`div(Vector<Double> v, VectorMask<Double> m)`
  Divides this vector by a second input vector under the control of a mask.
  `final DoubleVector`
  DoubleVector.`div(Vector<Double> v, VectorMask<Double> m)`
  Divides this vector by a second input vector under the control of a mask.
  `final VectorMask<Double>`
  DoubleVector.`eq(Vector<Double> v)`
  Tests if this vector is equal to another input vector.
  `abstract DoubleVector`
  DoubleVector.`expand(VectorMask<Double> m)`
  Expands the lane elements of this vector under the control of a specific mask.
  `final DoubleVector`
  DoubleVector.`fma(Vector<Double> b, Vector<Double> c)`
  Multiplies this vector by a second input vector, and sums the result with a third.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset)`
  Loads a vector from an array of type `double[]` starting at an offset.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset, int[] indexMap, int mapOffset)`
  Gathers a new vector composed of elements from an array of type `double[]`, using indexes obtained by adding a fixed `offset` to a series of secondary offsets from an index map.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Double> m)`
  Gathers a new vector composed of elements from an array of type `double[]`, under the control of a mask, and using indexes obtained by adding a fixed `offset` to a series of secondary offsets from an index map.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Double> m)`
  Gathers a new vector composed of elements from an array of type `double[]`, under the control of a mask, and using indexes obtained by adding a fixed `offset` to a series of secondary offsets from an index map.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset, VectorMask<Double> m)`
  Loads a vector from an array of type `double[]` starting at an offset and using a mask.
  `static DoubleVector`
  DoubleVector.`fromArray(VectorSpecies<Double> species, double[] a, int offset, VectorMask<Double> m)`
  Loads a vector from an array of type `double[]` starting at an offset and using a mask.
  `static DoubleVector`
  DoubleVector.`fromMemorySegment(VectorSpecies<Double> species, MemorySegmentPREVIEW ms, long offset, ByteOrder bo)`
  Loads a vector from a memory segmentPREVIEW starting at an offset into the memory segment.
  `static DoubleVector`
  DoubleVector.`fromMemorySegment(VectorSpecies<Double> species, MemorySegmentPREVIEW ms, long offset, ByteOrder bo, VectorMask<Double> m)`
  Loads a vector from a memory segmentPREVIEW starting at an offset into the memory segment and using a mask.
  `static DoubleVector`
  DoubleVector.`fromMemorySegment(VectorSpecies<Double> species, MemorySegmentPREVIEW ms, long offset, ByteOrder bo, VectorMask<Double> m)`
  Loads a vector from a memory segmentPREVIEW starting at an offset into the memory segment and using a mask.
  `final void`
  DoubleVector.`intoArray(double[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Double> m)`
  Scatters this vector into an array of type `double[]`, under the control of a mask, and using indexes obtained by adding a fixed `offset` to a series of secondary offsets from an index map.
  `final void`
  DoubleVector.`intoArray(double[] a, int offset, VectorMask<Double> m)`
  Stores this vector into an array of type `double[]` starting at offset and using a mask.
  `final void`
  DoubleVector.`intoMemorySegment(MemorySegmentPREVIEW ms, long offset, ByteOrder bo, VectorMask<Double> m)`
  Stores this vector into a memory segmentPREVIEW starting at an offset using explicit byte order and a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Binary op, double e, VectorMask<Double> m)`
  Combines the lane values of this vector with the value of a broadcast scalar, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Binary op, long e, VectorMask<Double> m)`
  Combines the corresponding lane values of this vector with those of a second input vector, with selection of lane elements controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Binary op, Vector<Double> v)`
  Combines the corresponding lane values of this vector with those of a second input vector.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Binary op, Vector<Double> v, VectorMask<Double> m)`
  Combines the corresponding lane values of this vector with those of a second input vector, with selection of lane elements controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Binary op, Vector<Double> v, VectorMask<Double> m)`
  Combines the corresponding lane values of this vector with those of a second input vector, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, double e1, double e2, VectorMask<Double> m)`
  Combines the lane values of this vector with the values of two broadcast scalars, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, double e1, Vector<Double> v2)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, double e1, Vector<Double> v2, VectorMask<Double> m)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, double e1, Vector<Double> v2, VectorMask<Double> m)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, double e2)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, double e2, VectorMask<Double> m)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar, with selection of lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, double e2, VectorMask<Double> m)`
  Combines the lane values of this vector with the values of another vector and a broadcast scalar, with selection of lane elements controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, Vector<Double> v2)`
  Combines the corresponding lane values of this vector with the lanes of a second and a third input vector.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, Vector<Double> v2, VectorMask<Double> m)`
  Combines the corresponding lane values of this vector with the lanes of a second and a third input vector, with selection of lane elements controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Ternary op, Vector<Double> v1, Vector<Double> v2, VectorMask<Double> m)`
  Combines the corresponding lane values of this vector with the lanes of a second and a third input vector, with selection of lane elements controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`lanewise(VectorOperators.Unary op, VectorMask<Double> m)`
  Operates on the lane values of this vector, with selection of lane elements controlled by a mask.
  `final VectorMask<Double>`
  DoubleVector.`lt(Vector<Double> v)`
  Tests if this vector is less than another input vector.
  `final DoubleVector`
  DoubleVector.`max(Vector<Double> v)`
  Computes the larger of this vector and a second input vector.
  `final DoubleVector`
  DoubleVector.`min(Vector<Double> v)`
  Computes the smaller of this vector and a second input vector.
  `final DoubleVector`
  DoubleVector.`mul(double e, VectorMask<Double> m)`
  Multiplies this vector by the broadcast of an input scalar, selecting lane elements controlled by a mask.
  `final DoubleVector`
  DoubleVector.`mul(Vector<Double> v)`
  Multiplies this vector by a second input vector.
  `final DoubleVector`
  DoubleVector.`mul(Vector<Double> v, VectorMask<Double> m)`
  Multiplies this vector by a second input vector under the control of a mask.
  `final DoubleVector`
  DoubleVector.`mul(Vector<Double> v, VectorMask<Double> m)`
  Multiplies this vector by a second input vector under the control of a mask.
  `final DoubleVector`
  DoubleVector.`pow(Vector<Double> b)`
  Raises this vector to the power of a second input vector.
  `abstract DoubleVector`
  DoubleVector.`rearrange(VectorShuffle<Double> m)`
  Rearranges the lane elements of this vector, selecting lanes under the control of a specific shuffle.
  `abstract DoubleVector`
  DoubleVector.`rearrange(VectorShuffle<Double> s, Vector<Double> v)`
  Rearranges the lane elements of two vectors, selecting lanes under the control of a specific shuffle, using both normal and exceptional indexes in the shuffle to steer data.
  `abstract DoubleVector`
  DoubleVector.`rearrange(VectorShuffle<Double> s, Vector<Double> v)`
  Rearranges the lane elements of two vectors, selecting lanes under the control of a specific shuffle, using both normal and exceptional indexes in the shuffle to steer data.
  `abstract DoubleVector`
  DoubleVector.`rearrange(VectorShuffle<Double> s, VectorMask<Double> m)`
  Rearranges the lane elements of this vector, selecting lanes under the control of a specific shuffle and a mask.
  `abstract DoubleVector`
  DoubleVector.`rearrange(VectorShuffle<Double> s, VectorMask<Double> m)`
  Rearranges the lane elements of this vector, selecting lanes under the control of a specific shuffle and a mask.
  `abstract double`
  DoubleVector.`reduceLanes(VectorOperators.Associative op, VectorMask<Double> m)`
  Returns a value accumulated from selected lanes of this vector, controlled by a mask.
  `abstract DoubleVector`
  DoubleVector.`selectFrom(Vector<Double> v)`
  Using index values stored in the lanes of this vector, assemble values stored in second vector `v`.
  `abstract DoubleVector`
  DoubleVector.`selectFrom(Vector<Double> s, VectorMask<Double> m)`
  Using index values stored in the lanes of this vector, assemble values stored in second vector, under the control of a mask.
  `abstract DoubleVector`
  DoubleVector.`selectFrom(Vector<Double> s, VectorMask<Double> m)`
  Using index values stored in the lanes of this vector, assemble values stored in second vector, under the control of a mask.
  `abstract DoubleVector`
  DoubleVector.`slice(int origin, Vector<Double> v1)`
  Slices a segment of adjacent lanes, starting at a given `origin` lane in the current vector, and continuing (as needed) into an immediately following vector.
  `final DoubleVector`
  DoubleVector.`slice(int origin, Vector<Double> w, VectorMask<Double> m)`
  Slices a segment of adjacent lanes under the control of a mask, starting at a given `origin` lane in the current vector, and continuing (as needed) into an immediately following vector.
  `final DoubleVector`
  DoubleVector.`slice(int origin, Vector<Double> w, VectorMask<Double> m)`
  Slices a segment of adjacent lanes under the control of a mask, starting at a given `origin` lane in the current vector, and continuing (as needed) into an immediately following vector.
  `final DoubleVector`
  DoubleVector.`sub(double e, VectorMask<Double> m)`
  Subtracts an input scalar from this vector under the control of a mask.
  `final DoubleVector`
  DoubleVector.`sub(Vector<Double> v)`
  Subtracts a second input vector from this vector.
  `final DoubleVector`
  DoubleVector.`sub(Vector<Double> v, VectorMask<Double> m)`
  Subtracts a second input vector from this vector under the control of a mask.
  `final DoubleVector`
  DoubleVector.`sub(Vector<Double> v, VectorMask<Double> m)`
  Subtracts a second input vector from this vector under the control of a mask.
  `abstract VectorMask<Double>`
  DoubleVector.`test(VectorOperators.Test op, VectorMask<Double> m)`
  Test selected lanes of this vector, according to the given operation.
  `abstract DoubleVector`
  DoubleVector.`unslice(int origin, Vector<Double> w, int part)`
  Reverses a slice(), inserting the current vector as a slice within another "background" input vector, which is regarded as one or the other input to a hypothetical subsequent `slice()` operation.
  `abstract DoubleVector`
  DoubleVector.`unslice(int origin, Vector<Double> w, int part, VectorMask<Double> m)`
  Reverses a slice(), inserting (under the control of a mask) the current vector as a slice within another "background" input vector, which is regarded as one or the other input to a hypothetical subsequent `slice()` operation.
  `abstract DoubleVector`
  DoubleVector.`unslice(int origin, Vector<Double> w, int part, VectorMask<Double> m)`
  Reverses a slice(), inserting (under the control of a mask) the current vector as a slice within another "background" input vector, which is regarded as one or the other input to a hypothetical subsequent `slice()` operation.
  `static DoubleVector`
  DoubleVector.`zero(VectorSpecies<Double> species)`
  Returns a vector of the given species where all lane elements are set to zero, the default primitive value.